“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	Euler operator Euler parameter Euler path Euler pentagonal number theorem Euler phi function Euler phi-function Euler-Poincare characteristic Euler-Poincaré characteristic Euler-Poincaré class Euler-Poincaré formula Euler-Poincaré mapping Euler Poinsot case Euler-Poinsot case Euler point Euler Poisson Darboux equation Euler-Poisson-Darboux equation Euler-Poisson integral euler pole Euler polygonal arc Euler polygonal arc method Euler polygon division problem Euler polygons Euler polyhedral formula Euler polyhedron Euler polynomial

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。