“水力扩张式封隔器”的概念、定义、翻译、参考文献-科学参考

单词	水力扩张式封隔器
释义	水力扩张式封隔器 Encyclopedia 工学桥塞释 hydraulic expansion packer水力扩张式封隔器通过使胶筒内部压力大于外部压力（即使油管压力大于套管压力）而扩张，封隔油、套管环形空间的封隔器。
随便看	principal elliptic term principal enumeration principal equation principal escaped point principal factor principal fiber bundle principal fiber space principal fibration principal filter principal focus principal for facet sequence principal form principal formula principal fractional ideal principal fractionary ideal principal function principal function classes principal functor principal fundamental solution principal G bundle principal G-bundle principal genus principal G-object principal graduate principal graph

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