parachute是什么意思

用法例句

Applying the method of malfunction tree analysis in reliability design,the cause of rope-breaking in vertical mine skip hoisting system is analyzed,and measure preventing from rope-breaking is bring forward,which will help improving the security in vertical mine skip hoisting system.

矿井提升钢丝绳是矿井提升系统最重要的组成部分,钢丝绳断绳,不但影响矿井生产,还危及矿井安全。

This paper introduces the characteristics of steel wire ropes used in the inclined-tunnel's lifting conveyance,analyzes on the main reasons of the rope-broken accident of hydraulic support in fully mechanized coal mining face,and advances some measures for preventing the accident.

介绍了斜巷提升运输中钢丝绳的特性,分析了综采液压支架断绳事故的主要原因,提出了预防事故发生的措施。