1.
Food is broken down by chemicals.
化学物质引起食物转化。
2.
incorporate a chemical substance with others
把一种化学物质与他种化学物质混合
3.
chemical residue and contaminant
化学物质残滓及污染物
4.
poisonous plants, chemicals
有毒的植物、 化学物质.
5.
chemicals poisoning the lake;
污染湖泊的化学物质；
6.
weaken the consistency of (a chemical substance).
削弱化学物质的浓度。
7.
a chemical substance that repels.
有驱逐作用的化学物质。
8.
the branch of chemistry dealing with the physical properties of chemical substances.
化学中有关化学物质的物理性质的分支。
9.
chemicals that interact to form a new compound
相互作用形成新化合物的化学物质
10.
The chemicals include nitrogen, phosphorus, proteins, and carbohydrates!
这些化学物质包括氮、磷、蛋白质及碳水化合物。
11.
a chemical substance formed as a result of a chemical reaction.
化学反应产生的化学物质。
12.
a chemical substance that is present at the start of a chemical reaction.
一开始就参加化学反应的化学物质。
13.
solid dielectric physicochemistry
固体电介质物理化学
14.
The ability of a material to unite with oxygen is a chemical property.
物质同氧化合的能力是一种化学性质。
15.
Reforming Teaching and Improving the Teaching Quality in Biochemistry
改革生物化学教学 提高生物化学教学质量
16.
Biochemie( biochemistry): The study of the chemical processes and substances occurring in living things.
生物化学：对生物的化学反应过程和物质的研究。
17.
An antioxidant is a chemical compound or substance that inhibits oxidation.
抗氧化物是一种化学复合物或物质，可抑制氧化。
18.
(chemistry) a process in which one or more substances are changed into others.
（化学）一种或多种物质转化为其他物质的过程。