1.
Having one replaceable atom or radical.
一元的有一个可置换原子或原子团的
2.
an atom or group of atoms with at least one unpaired electron.
至少含有一个不成对电子的原子或原子团。
3.
an atom or molecule or radical or ion that forms a complex around a central atom.
在中心原子周围形成一个联合体的原子、分子、原子团或离子。
4.
The stability of HF results in an ozone-depleting potential of the fluorine radical that is approximately three orders of magnitude less than that of the chlorine radical.
HF的稳定性导致了氟原子团的臭氧损耗的可能。氟原子团大约比氯原子团小三个数量级。
5.
The radical group HCO3- or a compound, such as sodium bicarbonate, containing it.
碳酸氢盐原子团HCO3－或含有该原子团的化合物，如碳酸氢硅
6.
The bivalent radical CO.
羰基，碳酰基二价原子团CO
7.
The divalent radical UO22+.
铀酰，双氧铀根二价原子团UO22＋
8.
any compound containing the group -C=NOH.
任何一种含有C=NOH原子团的合成物。
9.
a polymer containing repeated amide groups.
含有重复的酰胺原子团的聚合物。
10.
Experimental and Theoretical Studies on Carbon/Sulfur Binary Cluster Produced by Laser Vaporization;
碳、硫二元原子团簇的实验和理论研究
11.
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反映时由所失、增加成共享的电子数目决定的化合能力
12.
A reaction in which an atom, a radical, or a molecule replaces another in a compound.
置换化合物中一个原子、原子团或分子代替另一个的反应
13.
A Theoretical Study on Geometries and Electronic Structure of Gold Clusters;
金原子团簇几何构型和电子结构的理论研究
14.
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
15.
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
16.
The third position from a designated carbon atom in an organic molecule at which an atom or a radical may be substituted.
第三位在有机分子中从一指定碳原子后第三个位置，在此一个原子或原子团可能被替代
17.
Of or relating to the consecutive positions of substituted elements or radicals on a benzene ring.
连位的苯环上不断的替代物或者原子团连位的
18.
(chemistry) relating to or containing the carbonyl group.
（化学）含有或与碳酰基二价原子团CO有关。