High load applied to the piston pump vane pump and the hydraulic system, as well as middle - and high-load of construction machinery, equipment and vehicles imported hydraulic system lubrication.是什么意思_High load applied to the piston pump vane pump and the hydraulic system, as well as middle - and high-load of construction machinery, equipment and vehicles imported hydraulic system lubrication.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句