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单词
basal plug
释义
basal plug
基本
例句
底塞
A diaphragm in the plug body ruptures to allow the cement slurry to pass through after the plug reaches the landing collar.
在塞体中的隔膜破裂,以便使水泥浆能在底塞到达止塞箍以后通过。
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更新时间:2024/9/23 8:24:50