“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	grassland hydrology grassland hydrology and water resources grassland in Aba grassland in Altai grassland industry of China grassland in Ganzi grassland in mountain areas of southern China grassland in northwestern Sichuan province grassland invasive plant grassland irrigation grassland irrigation cycle grassland irrigation efficiency grassland irrigation quality grassland irrigation quantity grassland irrigation uniformity grassland irrigation water use efficiency grassland landscape grassland law Grassland Law of the People’s Republic of China grassland leisure tourism grassland livestock grassland-livestock system coupling grassland mammals grassland management grassland multifunctionality

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。