请输入您要查询的英文单词:

 

单词 roof bolt
释义

roof bolt

noun Mining
A tensioned rod anchoring the roof of a working to the strata above.The protracted closure of the main pool for three months after the failure of a couple of roof bolts, and the lack of publicity for the training pool's availability, meant many customers simply ‘lost the habit’ of visiting their local pool....
  • She stated in her letter that the pool was closed for repair work for three months due to a couple of roof bolts.

Derivatives

roof-bolting

noun
随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/3 8:35:43