organic molecules are present in comets.
彗星上存在有机。
organic molecules are present in comets.
彗星上存在有机。
molecules with unpaired valence electrons.
带有不成对价电。
They are all chiral molecules and belong in the racemate.
它们都是手性,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识别研究进展。
What are the chances of these molecules springing spontaneously into existence?
这些自然形成
可能性有多大?
the molecules fluoresce when excited by ultraviolet radiation.
受到紫外线辐射刺激时发荧光。
The large molecules are cracked into smaller molecules.
大裂变为小
。
The structure of molecules can be seen under an electron microscope.
结构可在电
显微镜下观察到。
Inside the reactor the large molecules are cracked into smaller molecules.
在反应里,大
裂变为小
。
We must conclude that when the distance between the molecules is very small, there are forces of repulsion.
我们必须断定当间距离很小时,就存在互相排斥
力量。
Dithiooxamide molecules were adsorbed on the metal surface through the amine and thiol groups.
二硫代乙二酰胺通过其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理论处理异核双原基本上与处理同核双原
是相同
。
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(
植式营
):是利用光能将无机
合成为复杂
有机
一种营
方式。它还可以用另一个名词--能光合自
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).
单体基本特性是至少能与两个其它单体
形成化学键
能力(多功能性)。
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)是由结合2更癸
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,选定其中4种,利用纳米级粒
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,有三个乙酸和一个质
(以氧鎓
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.
通常,随机热运动,会让声波
行为和光量
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)和冠状系统别是有机化学领域中
苯碳氢化合物和冠状碳氢化合物
结构
自然体现。
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