crypto-crystal martensite是什么意思

用法例句

Study on Mineral Processing of Bameng Cryptocrystalline Magnesite Ore;

巴盟隐晶质菱镁矿选矿试验研究

Tor efficient the exploitation of aphianitic graphite resource, research aiming to purify aphianitic graphite mined in China have been carried out, which has a carbon content 84.

对于隐晶石墨进行有效的提纯开发十分必要。