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。
Cable operated excavators volumetric rating for buckets 机械挖掘机铲斗.容量标定
Crawler excavators with electric power . basic parameter 履带式电动挖掘机基本参数
We need a mechanical digger to level the ground 我们需要一台挖掘机来平整土地。
Hydraulic load sensor technology application in drager 液压挖掘机的负荷传感技术
Electronic control system on digger hitachi ec200 - 3 grab 3型挖掘机电子控制系统
Anatomy of typical failures of komatsu pc200 - 7 excavator 7型挖掘机典型故障剖析
Crawler excavators with electric power . specification 履带式电动挖掘机技术条件
Rules for the inspection of hydraulic excavators for export 出口液压挖掘机检验规程
Hydraulic excavators . hoe type buckets . volumetric ratings 液压挖掘机.反铲斗容量标定
