Mainly introduced the oil sand nature as well as the present oil sand distribution and the reserves, elaborated the oil sand method of exploitation and the oil sand separation method.

 
  • 主要介绍了油砂的性质以及目前油砂的分布及储量,阐述了油砂的开采方法及油砂的分离方法。
今日热词
目录 附录 查词历史