| 单词 | 分子结构 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔acyclic〕Chemistry Having an open-chain molecular structure rather than a ring-shaped structure.【化学】 无环的：具有开链分子结构的，而非环状结构的美国传统〔allotropy〕The existence, especially in the solid state, of two or more crystalline or molecular structural forms of an element.同素异形现象：一种元素中有两种或更多的晶体或分子结构形式，特别是以固态存在的现象美国传统〔beta〕The second position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.第二位，β位：有机物分子结构中位于距指定碳原子的第二个位置，在此位置上原子或原子团可被取代美国传统〔chiral〕Of or relating to the structural characteristic of a molecule that makes it impossible to superimpose it on its mirror image.对掌性的，手征性的：一种特征为不能和自身的镜像重叠的分子结构或与之相关的美国传统〔constitution〕What is the molecular constitution of the chemical? 这种化学品的分子结构是什么？韦氏高阶〔monocyclic〕Chemistry Having a molecular structure with only one ring.【化学】 单环的：只有一环的分子结构美国传统〔optical activity〕A property caused by asymmetrical molecular structure that enables a substance to rotate the plane of incident polarized light.旋光性：由不对称分子结构引起的特性，它能使物质旋转产生极光美国传统〔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〔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〔rearrangement〕As students of chemistry know, even small rearrangements of a molecule's structure can produce a compound that acts differently.学化学的学生都知道，分子结构哪怕有很小的变动，都会产生新的引起不同化学反应的化合物。剑桥高阶〔side chain〕An organic molecular structure in the form of a branched open chain or ring.侧锁，侧链：为分支开链或开环形式的有机分子结构美国传统〔straight chain〕An organic molecular structure in the form of an unbranched open chain.直链：由无分支的开放的链构成的有机分子结构美国传统〔structure〕They studied the compound's molecular structure.他们研究了这种化合物的分子结构。韦氏高阶〔superhelix〕A molecular structure, as of a protein or DNA, in which a helix is itself coiled into a helix.超螺旋：如蛋白质或DNA的一种分子结构，在这种结构中一个螺旋线交缠在另一个螺旋线中美国传统As students of chemistry know, even small rearrangements of a molecule's structure can produce a compound that acts differently.学化学的学生知道，即使一个分子结构的小变动也会产生一种反应不同的化合物。剑桥国际 |
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