英语词汇extraction opening怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
?抽汽口
... extraction non-return valve 抽汽逆止阀 extraction opening 抽汽口 extraction point 抽汽口，抽汽点 ...

短语

1
Due to the increase in access space, the stress concentration state of roadway is improved and the stability of extraction opening is increased.
大间距无底柱由于加大了进路间距，改善了巷道的应力集中状态，提高了回采巷道的稳定性。
2
The surrounding rock of roadway is a compound structure consisted of roof, floor and sides. The sides of extraction opening are the weak coal mass, which affect the stability of floor directly.
巷道围岩是由顶板、底板、两帮组成的复合结构体，回采巷道两帮为软弱煤体，直接影响到底板的稳定性。

单词	extraction opening
释义	extraction opening 简明释义抽汽口网络释义 1 ?抽汽口 ... extraction non-return valve 抽汽逆止阀 extraction opening 抽汽口 extraction point 抽汽口，抽汽点 ... 短语 1 steam extraction opening 抽汽口双语例句 1 Due to the increase in access space, the stress concentration state of roadway is improved and the stability of extraction opening is increased. 大间距无底柱由于加大了进路间距，改善了巷道的应力集中状态，提高了回采巷道的稳定性。 2 The surrounding rock of roadway is a compound structure consisted of roof, floor and sides. The sides of extraction opening are the weak coal mass, which affect the stability of floor directly. 巷道围岩是由顶板、底板、两帮组成的复合结构体，回采巷道两帮为软弱煤体，直接影响到底板的稳定性。
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