molecules

organic molecules are present in comets.

彗星上存在有机分子。

molecules with unpaired valence electrons.

带有不成对价电子的分子。

They are all chiral molecules and belong in the racemate.

它们都是手分子,属于外消旋体。

Molecular recognition by use of metalloporphyrin as host molecules are reviewed.

综述了金属卟啉配合物的分子识别研究进展。

What are the chances of these molecules springing spontaneously into existence?

这些分子自然形成的可能有大？

the molecules fluoresce when excited by ultraviolet radiation.

分子受到紫外线辐射刺激时发荧光。

The large molecules are cracked into smaller molecules.

大分子裂变为小分子。

The structure of molecules can be seen under an electron microscope.

分子的结构可在电子显微镜下观察到。

Inside the reactor the large molecules are cracked into smaller molecules.

在反应里,大分子裂变为小分子。

We must conclude that when the distance between the molecules is very small, there are forces of repulsion.

我们必须断定当分子间距离很小时，就存在互相排斥的力量。

Dithiooxamide molecules were adsorbed on the metal surface through the amine and thiol groups.

二硫代乙二酰胺分子氨基和巯基共同吸附于金属表面。

The treatment of heteronuclear diatomic molecules by LCAO-MO theory is not fundamentally different from the treatment of homonuclear diatomics.

用LCAO-MO理论处理异核双原子分子基本上与处理同核双原子分子是相同的。

holophytic The type of nutrition in which complex organic molecules are synthesized from inorganic molecules using light energy. It is another term for photoautotrophic.

自养的（全植式营养）：是利用光能将无机分子合成为复杂的有机分子的一种营养方式。它还可以用另一个名词--能光合自养的来表示。

1. The essential feature of monomer molecules is the ability to form chemical Bonds (see Bonding) with at least two other monomer molecules (polyfunctionality).

单体分子的基本特是至少能与两个它单体分子形成化学键的能力(功能)。

Group IV: Polyalphaolefins (PAO's) are made by combining 2 to more decene molecules into an oligomer, a short-chain-length polymer.

第四组：聚（包）的是由结合2更癸分子成低聚物，短长链聚合物。

The team identified 42 such molecules and settled on four to track with the nanoparticles: decane, trimethylbenzene, ethylbenzene, and heptanol.

研究小组确认了42种这样的分子，选定中4种，利用纳米级粒子进行跟踪监测。

The rearrangement of acetone oxime in the Beckmann solution involves three acetic acid molecules and one proton (present as an oxonium ion).

模拟表明，有三个乙酸分子和一个质子（以氧鎓的形式纯在）参与了反应。

Ordinarily, random thermal jigging of the molecules prevents sound waves from behaving analogously to light quanta.

常，分子的随机热运动，会让声波的行为和光量子有别。

benzenoid system) and coronoid systems are the natural representations of the skeletons of molecules of benzenoid hydrocarbons and coronoid hydrocarbons in the field of organic chemistry.

六角系统(苯环系统)和冠状系统分别是有机化学领域中的苯碳氢化合物和冠状碳氢化合物的分子结构的自然体现。