The compiling standard of chemistry experiment teaching material was researched.
对化学实验教材编写标准进行了探索。
The last section is about an experiment using the middle school teaching material of chemistry.
第三部分则是采用中学化学课程材料所做的实验研究。
Experiment of eccentric tension is one of teaching content of material mechanics experiment.
偏心拉伸试验是材料力学试验教学内容之一。
Experiment of eccentric tension is one of teaching content of material mechanics experiment.
偏心拉伸试验是材料力学试验教学内容之一。
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