“slip-type packer”的概念、定义、翻译、参考文献-科学参考

单词	slip-type packer
释义	slip-type packer Encyclopedia 工学桥塞释 slip-type packer卡瓦式封隔器利用卡瓦固定，防止管柱轴向移动，通过下放一定管柱重量或管柱内加液压使胶筒直径变大，封隔油、套环形空间的封隔器。
随便看	product object product of a family of objects product of algebras product of cardinal numbers product of categories product of coal tar processing product of commutators product of correspondences product of cycles product of differences product of distributions product of elements product of extensions product of factors product of fiber bundles product of forms product of generalized functions product of graphs product of groups product of ideals product of inertia product of intervals product of knots product of languages product of lattices

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