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The host pumps and the auxiliary pump adopts the hydraulic and pneumatic united drive, the movement is nimble and reliable. 主泵、泵采用液氣聯(lián)合驅(qū)動及無觸點(diǎn)電氣控制系統(tǒng)，運(yùn)行平穩(wěn)，換向靈敏可靠。