“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	User profile/User Personas user range error User requirements user requirements user research users and interactive information retrieval users authentication authorization user's collaborative information retrieving behavior users'cost of fisheries resources user's diary description user's exploratory searching behavior user's perspective study user's psychology-behavior control mechanism user stack user study user survey method uses and gratifications approach U set U-set Use the Language of the Motherland Correctly, Fight for the Purity and Health of the Language!（Editorial） use value use value of forest resource use value of resources U.S.FDA USFDA

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。