chemical substance

chemical substance 基本解释

化学物质

chemical substance 用法和例句

1、A chemical substance that repels insects.

一种能驱除昆虫的化学物质。

2、Reference substance is a chemical substance that is usually used in chemical analysis.

对照品是化学分析中常用的物质。

3、The total amount of each chemical substance that they import across all product ranges.

他们的所有进品产品系列中每种化学成分的总量。

4、To stupefy or excite, as by the action of a chemical substance such as alcohol.

使喝醉使麻木或使兴奋，通过例如酒精等化学物质的作用

5、The Role of New Chemical Substance Notification on Chemical Environmental Management

新化学物质申报审批制度及在化学品环境管理中的作用

6、A chemical substance used to destroy or inhibit the growth of plants, especially weeds.

灭草剂用来摧毁或抑制植物，尤指杂草的生长的化学物质

7、adsorption The concentration of a chemical substance on the surface of an abiotic or biotic system.

这种元素的特殊化学特性使其成为一种好的催化剂。

8、The drying process of the adherent and easily oxidized chemical substance is considered in this paper.

对易氧化型物料精制硫化钠的干燥过程进行了试验研究。

9、The law of definite proportion states that different samples of a pure chemical substance always contain the same proportion of elements by mass.

定比定律是说一个纯净物中每种元素的质量比是一定的。

重点词汇

chemical n. 化学药品 a. 化学的, 化学上用的

substance n. 物质，材料；实质，内容；[神]灵；（织品的）质地