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The releasing one-way valve is used to release the pressure from the casing string and pick up the device properly.
释放单向阀用于释放管柱内的压力使装置顺利从套管中提出。
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The pressure relief device includes a panel member (12), and at least one release mechanism (16).
减压装置包括板构件(12)、以及至少一个释放机构(16)。
应用推荐
模块上移
模块下移
不移动