油压千斤顶：采用柱塞或液压缸作为刚性顶举件的千斤顶。
Hydraulic jack: Uses the plunger or the hydraulic cylinder goes against as the rigidity lifts a hoisting jack.
本实用新型用于双向作用的千斤顶或液压缸配用可以提高输出 油量，此外，还具有操作方便，运行安全可靠的特点。
The electric oil pump is used assistantly for bi-directionally acting jacks or hydraulic cylinders to increase oil output, and is characterized by easy operation and reliable running.
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