chemically

1.

Any of the chemically distinct forms of an enzyme that perform the same biochemical function.

同工酶，同功酶具有相同的生化功能的一种酶的不同化学形式中的任一种

2.

A device for burning or chemically altering unburned or partially burned carbon compounds in exhaust gases.

排气后燃器用以充分燃烧或从化学上改变废气中未完全燃烧或部分燃烧的含碳化合物的设备

3.

A composition of two or more substances that are not chemically combined with each other and are capable of being separated.

混合物由两种或更多彼此不发生化学合成并能被分开的物质组成的合成物

4.

Having the characteristics of an acid and a base and capable of reacting chemically either as an acid or a base.

两性的具有酸和碱的特征的，既能作为酸又能作为碱进行化学反应的