这样的化学构成可能是生命存在的先决条件。
如果你在通常的环境下进行化学实验,那么这些条件是什么?什么保持常数?
What is it when you run a chemical reaction under ordinary circumstances, what's constant?
是否有任何化学物质或条件,可能会破坏我的娃娃?
Are there any chemicals or conditions that can damage my doll?
本文详细介绍了它的工艺流程,过程化学,操作条件等,并讨论了过程工程方面的主要问题。
The process flow, process chemistry, operation conditions and so on are described in this paper.
标准的化学药剂清洗条件请参见表2。
Standard chemical medicament clean condition refers to table 2.
少量的表面锈蚀是漆膜的化学反应发生的必要条件。
Traces of surface corrosives are, however, necessary for the chem. ical reaction to take place.
少量的表面锈蚀是漆膜的化学反应发生的必要条件。
Traces of surface corrosives are, however, necessary for the chem. ical reaction to take place.
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