| 单词 | atoms |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔Anaxagoras〕Greek philosopher who correctly explained solar eclipses and believed matter to be composed of atoms.阿那克萨哥拉：古希腊哲学家，对日蚀做过正确解释并相信物质由原子组成美国传统〔accelerator mass spectrometry〕Mass spectroscopy in which a particle accelerator is used to disassociate molecules, ionize atoms, and accelerate the ions.加速物质光谱测定法：物质光谱学中用于分离分子、电离原子和加速离子的粒子加速器美国传统〔aliphatic〕Of, relating to, or designating a group of organic chemical compounds in which the carbon atoms are linked in open chains.脂族的，脂肪族的：关于或标明一组碳原子链连接于开链中的有机化合物的美国传统〔alpha〕Chemistry Closest to the functional group of atoms in an organic molecule.【化学】 阿尔法位的，第一位的：在有机分子中离功能原子基团最近的美国传统〔antimatter〕A hypothetical form of matter that is identical to physical matter except that its atoms are composed of antielectrons, antiprotons, and antineutrons.反物质：一种假想的物质形式，与自然物质相同的，只是其原子由反电子，反质子和反中子构成美国传统〔atomicity〕The number of atoms in a molecule.原子数，原子价，化合价：单质分子中的原子数美国传统〔atomicity〕The state of being composed of atoms.原子态：由原子构成的状态美国传统〔atomic〕Abbr. at.Of or relating to an atom or atoms.缩写 at.原子的：属于或关于原子的美国传统〔atomistic〕Of or having to do with atoms or atomism.原子（论）的：属于或关于原子或原子论的美国传统〔atomize〕To reduce to or separate into atoms.使粉碎：使减小或分解为微粒美国传统〔atom〕A molecule of carbon dioxide (CO2) has one carbon atom and two oxygen atoms.二氧化碳（CO2）分子是由一个碳原子和两个氧原子构成的。剑桥高阶〔atom〕Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.两个氢原子和一个氧原子结合组成一个水分子。牛津高阶〔axis〕One of three or four imaginary lines used to define the faces of a crystal and the position of its atoms.晶轴：用于决定水晶表面和它的原子位置的三、四条假想线中的一条美国传统〔azine〕A six-membered heterocyclic compound, such as pyridine, that contains one or more atoms of nitrogen with a ring structure resembling that of benzene.吖嗪，连氮：由六种元素构成的杂环化合物，如氮苯（吡啶），它由一个或更多的氮原子构成，呈环状结构，类似苯的结构美国传统〔a〕A molecule consists of two or more atoms.每个分子由两个或多个原子组成。麦克米伦高阶〔balance〕We can balance the equation by multiplying the different atoms and molecules.我们可以通过增加不同原子和分子的个数来配平等式。外研社新世纪〔behave〕Quantum mechanics is the study of the way atoms behave.量子力学是研究原子运动的学科。朗文当代〔binary〕Chemistry Consisting of or containing only molecules consisting of two kinds of atoms.【化学】 二元的：由只有两种原子构成的分子组成的美国传统〔bonding〕In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。柯林斯高阶〔bonding〕The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.这个分子包含四个呈环状排列的碳原子，每两个碳原子之间形成一个三价键。柯林斯高阶〔bond〕Carbon atoms can form bonds with nitrogen and oxygen atoms.碳原子可以与氮和氧原子形成化学键。麦克米伦高阶〔bond〕In graphite sheets, carbon atoms bond together in rings.石墨层中的碳原子相互连接形成碳环。外研社新世纪〔bond〕The atoms bond together to form a molecule.原子结合形成分子。牛津高阶〔bond〕The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.这个分子包含四个呈环状排列的碳原子, 每两个碳原子之间形成一个三价键。外研社新世纪〔bridge〕Chemistry An intramolecular connection that spans atoms or groups of atoms.【化学】 桥：指分子内部原子与原子间的连接物美国传统〔carbocyclic〕Having a ring composed exclusively of carbon atoms, as benzene.碳环的：有一个仅由碳原子组成的环的，如苯美国传统〔chain〕Chemistry A group of atoms bonded in a spatial configuration like links in a chain.【化学】 原子序，原子构造：限定在如链条上的连结环的空间构型里的一组原子美国传统〔chemical bond〕Any of several forces or mechanisms, especially the ionic bond, covalent bond, and metallic bond, by which atoms or ions are bound in a molecule or crystal.化学键：使原子或离子结合成分子或晶体的力量或历程，尤指离子键、共价键和金属键美国传统〔configuration〕Chemistry The structural arrangement of atoms in a compound or molecule.【化学】 构造：在化合物或分子内原子的排列结构美国传统〔conformation〕One of the spatial arrangements of atoms in a molecule that can come about through free rotation of the atoms about a single chemical bond.构象：单一化学原理中通过原子的自由旋转而形成的分子中原子的空间排列美国传统〔covalence〕The number of electron pairs an atom can share with other atoms.共用电子对数，共价：一个原子与其他原子共用的电子的对数美国传统〔covalent bond〕A chemical bond formed by the sharing of one or more electrons, especially pairs of electrons, between atoms.共价键：原子间共用一个或多个电子，尤指成对电子而形成的化学键美国传统〔crystal〕A homogenous solid formed by a repeating, three-dimensional pattern of atoms, ions, or molecules and having fixed distances between constituent parts.晶体：一种由原子、离子或分子作重复和立体型排列而形成的均质固体，在组成部分之间有固定的距离美国传统〔cyclic〕Chemistry Of or relating to compounds having atoms arranged in a ring or closed-chain structure.【化学】 环状的，环的：被排列在成环状或闭链结构中的原子的化合物的，或与之有关的美国传统〔diazo〕Relating to or containing a pair of bonded nitrogen atoms, one of which is also bonded to an aromatic hydrocarbon.重氮的：关于或含有一对结合的氮原子的，其中一个还结合一个芳（旋）烃美国传统〔dibasic〕Containing two replaceable hydrogen atoms.二元的：含有两个可取代的氢原子的美国传统〔dibasic〕Or or relating to salts or acids forming salts with two atoms of a univalent metal.含有两个一价金属原子的：盐类或酸类的，或者有关盐类或酸类的，它通过两个一价金属原子形成盐类美国传统〔dibromide〕A chemical compound containing two bromine atoms bound to another element or radical.二溴化物：含有两个溴原子与某元素原子或基团相结合所形成的二元化合物美国传统〔dichromic〕Chemistry Containing two chromium atoms per molecule.【化学】 每个分子中含有两个铬原子的美国传统〔dioxide〕A compound with two oxygen atoms per molecule.二氧化物：分子式中含有两个氧原子的化合物美国传统〔dislocation〕Chemistry An imperfection in the crystal structure of a metal or other solid resulting from an absence of an atom or atoms in one or more layers of a crystal.【化学】 位错：由晶位的一层或多层没有原子而导致金属或其他固体的晶体结构的不完美美国传统〔double bond〕A covalent bond in which two electron pairs are shared between two atoms.双键：两个原子之间的两个电子对的共价键美国传统〔electron pair〕Two electrons functioning or regarded as functioning in concert, especially two electrons that form a nonpolar covalent bond between atoms.电子对：协调运行或被认为是协调运行的两个电子，尤指在原子间形成非极性共价键的两个电子美国传统〔electrovalence〕Valence characterized by the transfer of electrons from atoms of one element to atoms of another during the formation of an ionic bond between the atoms.电价：在原子间形成离子键的过程中，由电子从一种元素的原子转移到另一种元素的原子所表示的价美国传统〔empirical formula〕A chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms of the elements.成分式：表示在一个分子中各元素的相对比例而非元素的实际原子数的化学式美国传统〔epoxide〕A ring-shaped chemical structure consisting of an oxygen atom bonded to two other atoms, usually of carbon, that are already bonded to each other.环氧：一种环形化学结构，其中一个氧原子和其他两个已结合在一起的原子相结合， 这两个原子通常为碳美国传统〔excite〕When energetic particles or quanta of radiation pass through a crystal, they excite a few of its atoms into a higher energy state.辐射性的高能粒子或量子穿过晶体时, 会把晶体的一些原子激发成更高的能态。外研社新世纪〔field-ion microscope〕A microscope that produces an image of the atoms on a metal surface by means of ions formed in a high-voltage electric field.场用显微镜：通过高压电场中形成的离子在金属表面展现原子图象的显微镜美国传统〔free radical〕An atom or group of atoms having at least one unpaired electron, which makes it highly reactive.自由基：至少有一个未配对的电子（这使它具有高度的反应性）的原子或原子团美国传统〔fuse together〕The hydrogen atoms fuse together.氢原子融合在一起。外研社新世纪〔fuse〕Atoms of hydrogen are fused to make helium.氢原子可熔合成氦。牛津高阶〔gram atom〕One mole of atoms of an element.克原子：一种元素的一摩尔原子美国传统〔group〕Two or more atoms behaving or regarded as behaving as a single chemical unit.原子团：两个或两个以上原子做为单一的化学单位运动美国传统〔hexose〕Any of various simple sugars, such as glucose and fructose, that have six carbon atoms per molecule.己糖：每个分子中有六个碳原子的几种初级的单糖之一，如葡萄糖和果糖美国传统〔hydrosulfide〕A chemical compound derived from hydrogen sulfide by replacement of one of the hydrogen atoms with a basic radical or base.氢硫化物：一种化学合物，通过用一个原子团或碱来替换硫酸的一个氢原子美国传统〔instrumentation〕Now with this particular piece of instrumentation, you can actually spot individual carbon atoms.现在利用这件特定的仪器,就可以真正观察到单个碳原子了。柯林斯高阶〔interaction〕Atoms within the fluid interact with the minerals that form the grains.液体中的原子与形成颗粒的矿物质相互作用。柯林斯高阶〔interact〕Atoms within the fluid interact with the minerals that form the grains.液体中的原子与形成颗粒的矿物相互作用。外研社新世纪〔interatomic〕Occurring, operating, or situated between atoms.出现，运作或位于原子间的美国传统〔ion〕An atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons.离子：由获得或失去一个或更多的电子而获取了一个净电荷的一个原子或一组原子美国传统〔isobar〕Any of two or more kinds of atoms having the same atomic mass but different atomic numbers.同量异位素：两种或各多种有相同原子质量但却有不同的原子序数的原子中的任一种美国传统〔isotone〕One of two or more atoms whose nuclei have the same number of neutrons but different numbers of protons.同中子异荷素；等中子异位素：两个或更多其原子核含有相同数量的中子却含不同数量质子的原子中的任一个美国传统〔isotope〕One of two or more atoms having the same atomic number but different mass numbers.同位素：两个或更多具有相同原子序数却具有不同的质量数的原子中的一个美国传统〔laser cooling〕The slowing down of atoms or molecules by the use of a laser whose frequency has been adjusted to remove momentum from the particles.激光致冷技术：利用激光降低原子或分子的运动速度，即调整激光频率来移除粒子中的动能美国传统〔metallic bond〕The chemical bond characteristic of metals, in which mobile valence electrons are shared among atoms in a usually stable crystalline structure.金属键：金属所特有的化学键，金属键中的游离价电子被分配在处于通常稳定的金属晶体结构的原子中美国传统〔molecular formula〕A chemical formula that shows the number and kinds of atoms in a molecule.分子式：表明一个分子中原子的数量和种类的化学式美国传统〔molecule〕A molecule of water consists of two atoms of hydrogen and one atom of oxygen.水分子由两个氢原子和一个氧原子构成。牛津高阶〔molecule〕A molecule of water is made up of two atoms of hydrogen and one atom of oxygen.1个水分子是由2个氢原子和1个氧原子构成的。英汉大词典〔molecule〕The molecules of oxygen gas contain just two atoms.氧分子中只有两个原子。朗文当代〔motion〕Special instruments record the speed and motion of the atoms.特殊仪器记录原子的速度和运动。麦克米伦高阶〔nanotechnology〕The science and technology of building electronic circuits and devices from single atoms and molecules.纳米科技：仅用原子或分子来制造电路板与电子装置的科技美国传统〔neutral〕Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电的质子、带负电的电子和称为中子的不带电粒子组成。剑桥高阶〔normal〕Designating an aliphatic hydrocarbon having a straight and unbranched chain of carbon atoms.正（链）的：指定脂肪族碳氢化合物含有一直且无分枝的碳原子链美国传统〔nucleus〕Chemistry A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.【化学】 环（晶）核：包围在抗化学反应变化的结构中的一组原子，如苯环美国传统〔open chain〕An arrangement of atoms that does not form a ring, as in silicon compounds and various carbon compounds, such as aliphatic hydrocarbons.开链：一种在结构式中可由中端点不连接成一个环的链描述原子的排列，如在硅化合物和多种碳化合物中，如脂肪族碳氢化合物美国传统〔oxidation〕A reaction in which the atoms in an element lose electrons and the valence of the element is correspondingly increased.氧化：一种某个元素的原子失去电子后它的原子价相应增加的反应美国传统〔oxide〕Atoms of iron in the nail combine with atoms of oxygen from the air to form molecules of iron oxide, or rust.钉子里的铁原子与空气中的氧原子结合后形成氧化铁分子, 产生了锈。外研社新世纪〔oxide〕Atoms of iron in the nail combine with atoms of oxygen from the air to form molecules of iron oxide, or rust.钉子里的铁原子与空气中的氧原子结合后形成氧化铁分子，也就是锈。柯林斯高阶〔particle beam〕A beam of atoms or subatomic particles that have been accelerated by a particle accelerating device, aimed by magnets, and focused by a lens.粒子束流：一束由粒子加速器加速过的原子或亚原子粒子，用磁石定方向，用透镜集中美国传统〔pentose〕Any of a class of monosaccharides having five carbon atoms per molecule and including ribose and several other sugars.戊糖：分子中含有五个炭原子的一种单糖，包括核糖及其它几种单糖美国传统〔pentoxide〕A compound having five atoms of oxygen combined with another element or radical.五氧化物：由五个氧原子和其它元素或基组成的化合物美国传统〔point defect〕A departure from symmetry in the alignment of atoms in a crystal that affects only one or two lattice sites.点缺陷：一种晶体的原子线性排列的不对称，它只影响一个或两个栅格美国传统〔polyatomic〕Of or relating to a molecule that has three or more atoms as constituents.多原子的：有三个或更多的原子作为其构成部分的分子的，或与之有关的美国传统〔polybasic〕Of or relating to an acid that has two or more hydrogen atoms that can be replaced by basic atoms or radicals.多元的；多碱价的：一种含有两个或更多能被碱性原子或原子团取代的氢原子酸的；或与之有关的美国传统〔polyether〕A polymer in which the repeating unit contains two carbon atoms linked by an oxygen atom.聚醚：一种聚合物，其中重复性的单位含有由一个氧原子连结的两个碳原子美国传统〔polysulfide〕A sulfide compound containing at least two sulfur atoms per molecule.多硫化物：每个分子中至少含有两个硫原子的一种硫化物美国传统〔powder〕The object that was destroyed was powdered into atoms.毁坏的物品被彻底粉碎。外研社新世纪〔primary〕Relating to the replacement of one of several atoms or radicals in a compound by another atom or radical.连上一个碳原子的：用另外一个原子或原子团来替代混合物中某一原子或原子团的过程的或与此有关的美国传统〔pump〕Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.【物理学】 电磁辐射能：用来将原子或分子提升到较高能级的电磁辐射美国传统〔quantum mechanics〕Quantum theory, especially the quantum theory of the structure and behavior of atoms and molecules.量子力学：量子理论，尤指原子及分子结构与运动的量子理论美国传统〔quark〕Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子，即质子、中子和电子组成的，其中有些是由更小的叫做夸克的粒子构成的。剑桥高阶〔radiation〕A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.核衰变产生的微粒或电磁波：放射物的原子或分子由于核衰变放出的一束微粒或电磁波美国传统〔radical〕Symbol R An atom or a group of atoms with at least one unpaired electron.符号 R 原子因，基团：至少有一个游离电子的原子或一组原子美国传统〔respect〕They may differ only in respect of two hydrogen atoms.它们可能仅仅存在两个氢原子的差异。外研社新世纪〔secondary〕Chemistry Characterized or formed by replacement of two atoms or radicals within a molecule. Used of a compound.【化学】 转化而成的：由一个分子内两个原子或电极替代所形成的，或有此特点的。用于化合物美国传统〔single bond〕A covalent bond in which one electron pair is shared by two atoms.单键：两个原子共用一个电子对的电子价美国传统〔sputter〕Physics To cause the atoms of a solid to be removed from the surface by bombardment with atoms in a discharge tube.【物理学】 排射：由排射试管中原子撞击而使固体原子从表面移开美国传统〔sputter〕Physics To coat (a solid surface) with metal atoms by sputtering.【物理学】 通过轰击把一个（固体表面）涂上金属原子美国传统〔stereoisomerism〕Isomerism created by differences in the spatial arrangement of atoms in a molecule.立体异构现象：因为原子在分子中排列不同而造成的异构现象美国传统〔stereoisomer〕One of a set of isomers whose molecules have the same atoms bonded to each other but differ in the way these atoms are arranged in space.立体异构体：异构体中的一个，它们的分子有同样的原子但这些原子在空间中的排列不同美国传统〔steric〕Of or relating to the spatial arrangement of atoms in a molecule.空间（排列）的：原子在分子中空间排列的美国传统〔structural formula〕A chemical formula that shows how the atoms and bonds in a molecule are arranged.结构式：表现分子中的原子的键如何排列的化学式美国传统〔tertiary〕Of or relating to salts of acids containing three replaceable hydrogen atoms.三代的：属于或关于含有三个可被替代的氢原子的各种酸盐的美国传统〔tetrabasic〕Containing four replaceable hydrogen atoms in a molecule. Used of acids.四元的：分子中含有四个可被替代的氢原子的，用于酸美国传统〔tetrabasic〕Containing four univalent basic atoms or radicals. Used of bases or salts.四代的：含有四个单价碱性原子或基团的，用于碱或盐美国传统〔tetrachloride〕A chemical compound containing four chlorine atoms per molecule.四氯化物：每分子含有四个氯原子的化合物美国传统〔tetracid〕An acid containing four replaceable hydrogen atoms.四酸：含有四个可替代的氢原子的酸美国传统〔tetracid〕Containing four replaceable hydrogen atoms. Used of an acid or acid salt.含有四个可替代的氢原子的，用于酸或酸盐美国传统〔tetratomic〕Having four atoms per molecule.四原子的：每个分子有四个原子的美国传统〔tetratomic〕Having four replaceable univalent atoms or radicals.四原子的：有四个可替换的单价原子或基团的美国传统〔tetroxide〕A chemical compound containing four oxygen atoms per molecule.四氧化物：每分子含有四个氧原子的化合物美国传统〔thiazine〕Any of a class of organic chemical compounds containing a ring composed of one sulfur atom, one nitrogen atom, and four carbon atoms, used in making dyes.硫氮杂苯：包括一个硫原子、一个氮原子和四个碳原子的环状有机化合物的任一种，用于制作染料美国传统〔triacid〕An acid containing three replaceable hydrogen atoms.三元酸：含有三个可被取代的氢原子的酸美国传统〔triacid〕Containing three replaceable hydrogen atoms. Used of an acid or acid salt.三价的：含有三个可被取代的氢原子的。用于酸或酸式盐类美国传统〔triatomic〕Containing three atoms per molecule.三原子的三代的：每个分子中包含有三个原子的美国传统〔triatomic〕Containing three replaceable atoms or radicals.三羟基的：包含有三个可取代的原子或基团的美国传统〔tribasic〕Containing three replaceable hydrogen atoms per molecule. Used of an acid.三元的三代的，三碱（价）的：每个分子中含有三个可取代的氢原子的。用于酸类美国传统〔tribasic〕Containing three univalent basic atoms or radicals per molecule. Used of a base or salt.三碱式的：每个分子中含有三个一价碱性原子或原子团的。用于碱类或盐类美国传统〔trichloride〕A compound containing three chlorine atoms per molecule.三氯化物：每个分子中含有三个氯原子的化合物美国传统〔triose〕One of a group of monosaccharides that contain three carbon atoms.丙糖：一种含有三个碳原子的单糖中的一种美国传统〔trioxide〕An oxide containing three oxygen atoms per molecule.三氧化物：每个分子中含有三个氧原子的氧化物美国传统〔triple bond〕A covalent bond in which three electron pairs are shared between two atoms.三键：两个原子共享三对电子的共价键美国传统〔trisodium〕Containing three sodium atoms.三钠：含有三个钠原子的美国传统〔trisulfide〕A sulfide containing three sulfur atoms per molecule.三硫化合物：每个分子中包含有三个硫原子的硫化物美国传统〔undissociated〕Chemistry Not dissociated into simpler groups of atoms, single atoms, or ions.【化学】 未离解的：未分离成更简单的原子群、单一原子或离子的美国传统〔valence electron〕An electron in an outer shell of an atom that can participate in forming chemical bonds with other atoms.价电子：参与或其他原子形成化合键的原子外层电子壳层的电子美国传统〔valence〕The combining capacity of an atom or a radical determined by the number of electrons that it will lose, add, or share when it reacts with other atoms.化合价，原子价：原子或原子团与其它原子结合的能力是由它在与其它的原子结合时所丢失、增加或共享的电子的数目决定的美国传统〔vibronic〕Of or relating to changes in molecular energy states associated with the vibrational energy of atoms.电子振动的：分子能量状态改变的或与此有关的，与原子的振动能量相关美国传统〔x-ray diffraction〕The scattering of x-rays by crystal atoms, producing a diffraction pattern that yields information about the structure of the crystal.X射线衍射：由晶体原子散射X射线后产生出的衍射模式，能带来有关该晶体结构的信息美国传统Atoms are made up of smaller particles--protons, neutrons and electrons--some of which are made up of even smaller ones, called quarks.原子是由微粒--质子、中子和电子组成的，其中有些微粒是由更小的叫作夸克的粒子组成的。剑桥国际Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电荷的质子、带负电荷的电子和称为中子的不带电微粒构成。剑桥国际A benzene molecule is made of six carbon atoms joined in a ring, each one with a hydrogen atom attached.苯分子由六个链状碳原子组成，每个碳原子带一个氢原子。剑桥国际A molecule of carbon dioxide (CO2) has one carbon atom and two oxygen atoms.二氧化碳的分子有一个碳原子和两个氧原子。剑桥国际Acids produce positively charged hydrogen atoms when dissolved in water.酸在水中溶解时可生成带正电荷的氢原子。剑桥国际The atoms in diamonds vibrate at very high frequencies.钻石中的原子以很高的频率振动。剑桥国际The haemoglobin molecule contains only four atoms of iron. 血红蛋白分子只含有四个铁原子。译典通We can generate electric power by splitting atoms. 我们可以利用原子核裂变发电。译典通What distinguishes all the species of plants and animals is, in the final analysis, differences in the way carbon atoms choose to bond.归根结底，区分所有的动植物物种，就是看碳原子结合方式上的差异。剑桥国际When heavy atoms are split in this way some loss of mass occurs. 当重原子这样被分裂的时候，就会发生质量的减少。译典通When the liquid cools, the atoms form themselves into a crystal structure.当液体冷却下来时，原子便自我组合，形成晶状体。剑桥国际 |
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