enclosed shaft

基本解释封闭竖井

网络释义

1)enclosed shaft,封闭竖井2)shaft enclosure,竖井封闭空间3)hoist blind,封闭井道4)confined flood pattern,封闭井网5)downhole shut-off valve,井下封闭阀6)blocking soil,井周封闭土质

用法和例句

Methods: Using cluster sampling, the water fluoride content, depth of well, materials of well as well as quality of blocking soil of FCRWQIP before 1996 in Xinyang were measured.

方法 :采取整群抽样办法 ,对被调查县 1996年前的所有改水工程水氟含量、打井深度、井壁结构材料和井周封闭土质进行调查分析。

enclosed shaft

网络释义

用法和例句

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