In the 18th century, London presented the hydraulic pressure printer, likes the Feir iron tower adjusting using the hydraulic pressure hoisting jack.
在18世纪，伦敦就出现了液压印刷机，爱菲尔铁塔利用水压千斤顶来调节。
2
The horizontal adjusting caging device of hydraulic slip form belongs to the additional device for a hydraulic slip form jack.
液压滑模调平限位器属于液压滑模千斤顶的附加装置。
3
Pressure controller is composed of measuring system, controlling device, adjusting machine, neon light displaying, indicating device, crust and jack plug.