“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	variational orbit variational principle variational principle for Maxwell equations variational principle of analytical mechanics variational principle of the quantum mechanics variational principles of elastic mechanics variational problem variational problem with fixed ends variational problem with free ends variational problem with mobile ends variational scheme variational series variational solution variational symbol variational theorem variational theory variational transition-state theory variational translation Variational Translation Theory variation between laboratories variation calculus variation centre variation coefficient variationcoefficient of orebody variation curve

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