chemical

noun

1. material produced by or used in a reaction involving changes in atoms or molecules

Synonym: chemical substance

chemical什么意思

adj

1. relating to or used in chemistry

e.g. chemical engineer
chemical balance

Synonym: chemic

2. of or made from or using substances produced by or used in reactions involving atomic or molecular changes

e.g. chemical fertilizer

1. 化学的;化学反应的;用化学方法生成的
Chemical means involving or resulting from a reaction between two or more substances, or relating to the substances that something consists of.

e.g. ...chemical reactions that cause ozone destruction.
导致臭氧受到破坏的化学反应
e.g. ...the chemical composition of the ocean.
海洋的化学成分

2. 化学品;化合物;化学制品
Chemicals are substances that are used in a chemical process or made by a chemical process.

chemical的反义词

e.g. The whole food chain is affected by the overuse of chemicals in agriculture.
整个食物链因农业生产过程过多使用化学品而受到影响。
e.g. ...a chemicals company.
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2. 化学物：C.肺炎(pneumonia) 小儿的肺部疾病以急性肺炎为最多,可以肺泡性或间质性分布来表现细菌性(bacterial)、滤过性毒(viral)、徽菌(fun-gal)、化学物(chemical)、和原虫类(protozoan)等.