英语词汇hydraulic self-sealing packer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

单词	hydraulic self-sealing packer
释义	hydraulic self-sealing packer 简明释义水力自封式封隔器网络释义 1 ?水力自封式封隔器 ... hydraulic seal 液体密封 hydraulic self-sealing packer 水力自封式封隔器 hydraulic servo 液压伺服机构 ... 双语例句 1 This paper introduces a kind of new type self-sealing packer, whose hydraulic self-sealing mechanism replaces setting and releasing mechanism. 本文介绍了一种新型自封式封隔器，该片隔器采用液压自封原理，取消了封隔器的坐、解封机构和相应的操作。
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