hydraulic grab meaning in English

液压操纵抓爪
液压抓岩机

Hiring of grab lorries and open covered lorry : item 2 - tipper lorry with 3 - tonne hydraulic grab 1 aug . 2004 - 31 jan 2007
租赁抓斗货车及开篷有篷货车：项目2 -设有三吨油压抓斗的卸斗货车
Hiring of grab lorries and open covered lorry : item 3 - high - side tipper lorry with 3 - tonne hydraulic grab 1 aug . 2004 - 31 jan 2007
租赁抓斗货车及开篷有篷货车：项目3 -设有三吨油压抓斗的高侧栏板卸斗货车
With an introduction to the construction of underground diaphram wall in fumin station , shenzhen city , this paper discusses the construction technique of forming dent into much and lightly weathered granite layers . which adopts hydraulic grab and different kinds of impacting drillers , and the construction of good quality protecting wall with mortar
摘要通过深圳地铁福民站地下连续墙施工实例，介绍在中、微风化花岗岩层，采用液压抓斗结合不同类型的冲击钻机和利用优质泥浆护壁的成槽施工技术。