In the classroom teaching of heat of combustion, we should first introduce combustion reaction and then lead to basic concept about it and about standard combustion reaction.
在燃烧热的课堂教学中，先介绍燃烧反应，再引出燃烧热、标准燃烧热的概念。
Meanwhile, a new method is introduced to determine the combustion heat of the less combustible substances by abding a standard substance.
对用氧弹测定易燃物质燃烧热的压片方法进行了改进。
The national primary standard of combustion heat was completely improved.
对国家燃烧热基准进行了全面改造。
The national primary standard of combustion heat was completely improved.
对国家燃烧热基准进行了全面改造。
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