“hydraulic expansion packer”的概念、定义、翻译、参考文献-科学参考

单词	hydraulic expansion packer
释义	hydraulic expansion packer 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	dense ring dense ring of linear transformations dense set dense star cluster dense subalgebra dense subcategory dense subgroup dense subset dense suspension flow dense suspension up flow dense wavelength division multiplex dense wavelength division multiplexing dense wavelength division multiplexing, DWDM dense wavelength division multiplexing in metropolitan area network dense wavelength division multiplexing，DWDM densification densification by sand pile densified pupil imaging densimeter densimeter based on radioactivity densimetry densitometer densitometry density density analysis

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