1) the well wall may shrink device
井壁可缩装置
2) vertical yield device of mine shaft liner
井壁竖向可缩装置
3) compressible shaft wall
可缩井壁
4) borehole wall contact device
贴井壁装置
5) retractable device
可缩装置
1.
This article mainly introduce design and installation process of tube-sheet retractable device, describe the installation process,construction experience of the main and assistant well s inner wall belonging to Garden mine.
介绍管板组合式可缩装置设计原理及安装工艺,并阐述在花园矿主、副井内层井壁的安装工艺流程、施工经验。
6) shrinkable mine shaft lining connector
可缩性井壁接头
补充资料：封口装置——滚纹装置
封口装置——滚纹装置     | ||
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说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条