excavating

1.On the other , many men was excavating the canalage drived by kurbash.

另一个，很多人在皮鞭驱使下开挖运河。

2.A bulldozer was employed for excavating the foundations of the building.

推土机用来给楼房挖地基。

3.The technical measures and structure,applied principles of blastproof of ventilation shaft at excavating face,specific operational method and prospective effect are described.

介绍了掘进工作面防炮崩风筒的主要技措施及技结构、应用原理、采用这项技的具体操作方法及达到的预期效果。