mechanical digger

• 挖掘机

mechanical digger的用法和样例：

例句

1. We need a mechanical digger to level the ground.
   我们需要一台挖掘机来平整土地。
2. In soft clay, tubes of the extending type can easily be pushed down through the clay by using a mechanical excavator.
   在软泥中，可以利用挖掘机，很容易地把需要延伸的管子穿过泥土推下去。