unbraced excavation

中文翻译无支撑挖掘

同义词释义

1)unbraced excavation,无支撑挖掘

2)braced excavation,支撑式挖掘

3)un-timbered excavation,无支撑开挖

4)lack of cutting force,挖掘无力

5)braced excavation,支撑开挖

6)sheeting for excavation,挖方支撑

It is discovered that the two kinds of lack of cutting force and three reason of action slow.

应用液压传动的基本原理,结合日立EX系列挖掘机机电液一体化的工作特点,对EX系列挖掘机两典型故障(挖掘无力与动作慢)的测试、诊断方法做了系统分析与介绍。