化合物
- chemical compound
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[chemical compound] 由两种或两种以上组分(如元素)按一定重量比与一定结构排列结合成的具有独特化学性质的物质
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维生素是一种人体无法合成的化合物。
A vitamin is a chemical compound that cannot be synthesized by the human body .
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叠氮化物:一种化合物,包含基团N。
Azide : a chemical compound that contains the group N.
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含硫化合物的名称前通常有前缀thio。
Sulphur-containing compounds are often prefixed by the term ' thio '
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不太稳定的化合物被转换成了一种叫做Delta-ATHC的化合物。
The less stable compounds were converted into a compound called Delta-A THC .
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这些化合物在肝脏中与遗传物质实现结合。
These compounds bind with genetic material in the liver .
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碳化合物氧化后必然会产生二氧化碳。
Carbon dioxide is a necessary result of the oxidation of carbon compounds .
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这种黏性的化合物能牢牢地粘在这个表面上。
This sticky compound adheres well on this surface .
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有机化合物的分子中含碳。
Organic compounds contain carbon in their molecules .
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研究重点追踪了5种化合物含量上升的影响。
The research effort has focused on tracing the effects of growing levels of five compounds
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空气是气体的混合物,不是化合物。
Air is a mixture , not a compound of gases .
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氧化铁是铁和氧的化合物。
Iron oxide is a compound of iron and oxygen .
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水是含有氢元素和氧元素的化合物。
Water is a compound containing the elements hydrogen and oxygen .
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a-fe2o3(赤铁矿)是中子衍射最先研究的化合物之一。
A-fe2o3 ( haematite ) was one of the first compounds to be studied by neutron diffraction .
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碳是一种(化学)元素,而二氧化碳则是一种化合物。
Carbon is an element , while carbon dioxide is a compound .
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不含碱性氮的化合物包括吡咯、吲哚、咔唑和苯咔唑。
Non-basic nitrogen-containing series include pyrroles , indoles , carbazoles and benzcarbazoles .
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可是,基本的异种化合物活性看来是由配基所决定的。
However , basic Allelochemical activity seems to lie with the aglycone .
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事实上还不知道芳香族化合物的直接烷氧基化的方法。
Direct alkoxylation of aromatic compounds is virtually unknown .
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烃是一类最重要的有机化合物。
Hydrocarbons are among the most important organic compounds .
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氯化物被认为是一种元素与氯化合组成的化合物。
Chlorides are considered as compounds consisting of one element combined with chlorine .
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有机化合物构成生命的基础。
Organic compounds form the basis of life .
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在稠环和桥环化合物中,两个碳原子是两个环公用的。
In fused-ring and bridged-ring compounds two carbons are common to the two rings .
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当碱加到这类化合物中,将发生一系列质子离解作用。
When alkali is added to such compounds a series of proton dissociations occurs .
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它们是否被代谢成毒性更强的化合物?
Are they metabolized to more toxic compounds .
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要避免使用那种非专用的同位素成分的铀化合物。
It is important to avoid the use of uranium compounds of unspecified isotopic composition .
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当两种或两种以上的元素结合形成化合物时,发生化学变化。
When two or more elements combine and form a compound , a chemical change takes place .
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人工合成了许多和腺嘌呤有关的化合物,并用几种生物鉴定法试验过。
A wide range of compounds related to adenine have been synthesized and tested in a number of bioassays .
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在更高的温度范围内,这些化合物的绝大部分又被苯噻吩和更复杂的环状化合物置换。
The predominance of these series is replaced in turn by benzothiophenes and increasingly complex ring-like compounds in the higher temperature ranges .
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被ScienceDirect数据库描述为“化学清洗剂”的羟基自由基是大气中发现的重要化合物,可以和其他有机分子发生反应。
Hydroxyl radicals , described as a " chemical scavenger12 " by Science Direct , are important chemical compounds found in the atmosphere due to the reactive nature with other organic molecules13 .
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碳氢化合物(HC)像一氧化碳一样,为未燃尽的和被浪费掉的燃料
Hydrocarbons ( HC ) , like carbon monoxide , represent unburned and wasted fuel .
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为化合物的研究中的新药物申请(IND)。
Investigational New Drug Application ( IND ) for the compound .