联合开拓
- un.combined development
- 网络combined development system; eomblneddevelopmentnlethod
联合开拓联合开拓
combined development system
石材术语 ... 立方料( cubic stock) 联合开拓( combined development system) 晶面机( crystal face machine) ...
eomblneddevelopmentnlethod
联合开拓(eomblneddevelopmentnlethod)是用两种或两种以上主要井巷，联合开拓一个井田的开拓方法。客观中立：客观和中 …