A drug is a chemical substance.
毒品是一种化学物质。
Every chemical substance is a key to the gates of heaven and hell.
每一种化学物质都是一把打开天堂和地狱之门的钥匙。
A molecule is the smallest part of a chemical substance.
分子是化学物质的最小的部分。
This chemical substance can be resolved into an acid and oxygen.
这种化学物质可以分解成一种酸和氧。
Beware of the commodities, i. e. liquid, gels, chemical substance.
特别注意以下物品：液体，凝胶，化学物品。
Some of them had exposed to metal dusts and special chemical substance.
部分患者有接触金属粉尘、特殊化学物质史。
Let's take a look at how the toxic chemical substance was found on the island.
让我们看看台湾如何发现这种有毒化学物品的。
A chemical substance that prevents or slows a cathodic or reduction reaction.
一种阻止或减缓阴极反应的化学物质。
We can get a new substance if we incorporate a chemical substance with others.
如果我们把一种化学物质和其他化学物质混合就能得到一种新物质。
Celery contains a valuable chemical substance that helps lower blood pressure.
芹菜中包含一种珍贵的化学物质，有助于降低血压。
Serotonin is a chemical substance involved in sending signals in the nervous system.
血液中的复合胺是一种在神经系统中参与传递信号的化学物质。
In chemical experiments, we often need to give proper prediction of concentration of chemical substance in solution.
在化学实验中经常需要对化学溶液各成分的浓度给出比较准确的预测。
Keto-enol tautomerism is the most common tautomery phenomenon. Keto -enol themselves are the real chemical substance.
酮及烯醇互变是互变作用最普通的现象，它们都是真实的化学实体。
The mythical philosopher's stone, or sorcerer's stone, is said to be a chemical substance capable of turning lead into gold.
神秘的点金石，或魔法石，据说是一种能将铅转化为金的化学物质。
The main cause of this area's water pollution is the chemical substance that leaks out of a paper mill by the river bank.
这一地区水污染的主要原因是河边一家造纸厂泄漏的化学物质。
A chemical substance in the digestive system of the palm civet causes some changes to the beans to give them a unique flavor.
一种在麝香猫消化系统内的化学物质会改变咖啡豆，让它们有一种特殊香气。
Silane coupling agent is a chemical substance, which can enhance the interface adhesion between inorganic fillers and resins.
硅烷偶联剂是应用最广的一类偶联剂。
Reducing agent, a chemical substance that gives electrons to another substance. A reducing agent is in contrast to an oxidizing agent.
一种把电子给另一种物质的化学物质，还原剂相对的是氧化剂。
Endocrine Disruptor is the general narration of harmful chemical substance which affects and disturbs endocrine system of living beings.
环境激素是指影响和扰乱生物内分泌系统的有害化学物质的总称。
The carbon-sulfur analyzer was corrected by mens of the pure chemical substance and was used to determine carbon content in titanium alloys.
采用纯化学物质对高频加热-红外检测碳硫仪校准，对钛合金中的碳量进行测定。
Chemists discovered the eighteenth millionth chemical substance known to science on June 15, 1998. Many thousands more have been developed since then.
到1998年6月15日时，化学家已经发现1800万种化学物质，之后又发现成千上万种新物质。
At present, developing the safety management and consequence of accidents analysis system of hazard chemical substance is one of the main projects.
开发危化品安全管理系统和事故后果分析系统是当前迫切的重大课题之一。
More and more attention is paid to study on the relation between the chemical substance structure and properties with the method of topological index.
应用拓扑指数的方法来研究化学物质的结构与性能之间的关系越来越受到人们的关注。
Objective To prepare a new multi functional sampler, which can better reflect the level of dust and chemical substance inhaled by exposed human bodies.
目的研制一种多用途，更能反映人体实际接触或吸入尘毒水平的采样仪。
Results SRBO exerted a definite analgesic effect on stimulation induced by physical and chemical substance. Analgesic effect of SRBO has dosage dependence.
结果实验数据经单因素方差分析，表明具有镇痛作用，且存在剂量依赖性关系。
The isoenzyme pattern and the activity of hydrogen peroxidase were analysed. The activity of certain chemical substance in larva's saliva gland was verified.
并对虫瘿的同工酶酶谱和过氧化氢酶活性进行了分析，对幼虫唾液腺内化学物质的活性进行了验证。
Antibiotic: Chemical substance that in dilute solutions can inhibit the growth of microorganisms or destroy them with little or no harm to the infected host .
抗生素： 生物体（通常是微生物）产生的对其他微生物有伤害作用的化学物质或代谢产物。
Antibiotic: Chemical substance that in dilute solutions can inhibit the growth of microorganisms or destroy them with little or no harm to the infected host .
抗生素： 生物体（通常是微生物）产生的对其他微生物有伤害作用的化学物质或代谢产物。
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