开沟爆破的英文

ditch blasting

trenching shot

• 开沟:    ditching; gutterin ...
• 爆破:    blow up; blast; bu ...
• 爆破开沟时用的复盖垫子:    blasting mat

例句与用法

1. Effect and gme of lenshan mine stope key out blasting on waste drift repass
   采场开沟爆破对废石平硐溜井的影响及对策