The paper introduces the working principle of the water seal system in the giant extruder of copper shape, discusses how to select the optimum clearance and how to design the control circuit of the hydraulic pulling equipment.是什么意思_The paper introduces the working principle of the water seal system in the giant extruder of copper shape, discusses how to select the optimum clearance and how to design the control circuit of the hydraulic pulling equipment.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句