| 单词 | ions |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔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〔acid-base equilibrium〕The state that exists when acidic and basic ions in solution exactly neutralize each other.酸碱平衡：溶液中的酸离子和碱离子正好互相中和的状态美国传统〔acid〕A substance capable of yielding hydrogen ions.氢离子供体：一种可放出氢离子的物质美国传统〔ambipolar〕Applying equally to both positive and negative ions.双极性的：等同地适用于正负离子的美国传统〔calpain〕A proteolytic enzyme that is regulated by the concentration of calcium ions.钙激活蛋白酶：用浓缩钙离子调节的蛋白酶美国传统〔cation〕An ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis.阳离子：带有正电荷的一个或一群离子，特点为在电解中向阴极运动美国传统〔chelate〕A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions.螯合物：杂环化学复合物，由一个金属离子与两个或两个以上非金属离子构成配位键美国传统〔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〔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〔deionize〕To remove ions from (a solution) using an ion-exchange process.除去离子：以离子交换法除去（溶液）中的离子美国传统〔diprotic〕Having two hydrogen ions to donate to bases in an acid-base reaction.双质子的：有两个氢基离子以便酸基反应的美国传统〔dissociation〕The separation of an electrolyte into ions of opposite charge.电解（作用）：一种电解质分解为带有相反电荷的离子的过程美国传统〔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〔gap junction〕An intercellular network of protein channels that facilitates the cell-to-cell passage of ions, hormones, and neurotransmitters.间隙连接：细胞间蛋白质的输入途径，能促进细胞与细胞间离子、荷尔蒙与神经传递素的通过美国传统〔hyperkalemia〕An abnormally high concentration of potassium ions in the blood.高钾血症：血液中钾离子的异常高度集中美国传统〔hypokalemia〕An abnormally low concentration of potassium ions in the blood.低钾血症，血钾过低：血液中不正常的低钾离子浓度美国传统〔interionic〕Located or occurring between ions.离子间的：位于或发生于离子之间的美国传统〔ion trap〕A device, such as a magnet, used to prevent ions in an electron beam from striking other apparatus.离子阀：用来防止电子束中的离子击中其它设备的一种装置，如一块磁铁美国传统〔ionic〕Of, containing, or involving ions.离子的：离子的，含有或涉及离子的美国传统〔ionization〕The formation of or separation into ions by heat, electrical discharge, radiation, or chemical reaction.电离作用：电热，放电，辐射，或化学反应导致的离子的形成或分离或离子的过程美国传统〔ionize〕To convert or be converted totally or partially into ions.（使）离子化：使或被完全或部分地转化为离子美国传统〔ionophore〕Any of a group of organic compounds that facilitate the transport of ions across the cell membrane.离子载体：为离子穿越细胞膜提供运输载体的一组有机化合物中的任何一种美国传统〔leach〕The calcium, potassium, and magnesium ions are leached or washed out of the top soil into lower inaccessible subsoil.钙、钾和镁离子被滤出表层土壤流入低层土壤却无法被吸收。剑桥高阶〔metalline〕Containing metal ions.含有金属离子的美国传统〔migration〕The movement of ions between electrodes during electrolysis.原子移动，电离子移动：在电解的过程中离子在电极之间的移动美国传统〔pump〕Physiology A molecular mechanism for the active transport of ions or molecules across a cell membrane.【生理学】 泵：使离子或分子主动穿过细胞膜的分子结构美国传统〔salt〕A chemical compound formed by replacing all or part of the hydrogen ions of an acid with metal ions or electropositive radicals.盐类：由金属离子或正电原子团替代酸中所有或部分的氢离子而得到的化合物美国传统〔secondary emission〕Emission of electrons from the surface of a substance as a result of bombardment by electrons or ions.二次发射：电子或中子爆炸时产生物质表面的电子发射美国传统〔semipermeable〕Allowing passage of certain, especially small, molecules or ions but acting as a barrier to others. Used of biological and synthetic membranes.半渗透的：允许特定的，尤其是小型的分子或离子通过，但对其它粒子则是屏蔽的。用于生物的和人造的膜美国传统〔sodium-potassium pump〕A mechanism of active transport that moves potassium ions into and sodium ions out of a cell.钠泵：一种生理机制，细胞内钾离子泵入，纳离子泵出美国传统〔space charge〕The excess of electrons or ions in a given volume.空间电荷：一定限度内过量的电子或离子美国传统〔time-of-flight mass spectroscopy〕A method of separating ions of different masses based on the time needed for the ions to traverse a fixed distance.离子化质谱术：根据离子横越一固定距离所需时间来将不同质量离子加以分开的方法美国传统〔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 |
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