The mass coefficient was brought forward to assess the activity factor of original coal gangue.

引入质量系数法评定原状煤矸石经热活化后辅助胶凝性能的大小。

youdao

The mass coefficient was brought forward to assess the activity factor of original coal gangue.

引入质量系数法评定原状煤矸石经热活化后辅助胶凝性能的大小。

youdao