[机] 变量液压系统 hydraulic pump delivery line: 液压泵供油管pumof variable delivery type: 变量泵steering variable delivery pump: 舵机的变量油泵variable delivery pump: 变量泵; 变量输送泵; 可变排量泵; 可变容积泵; 可调流量泵variable-delivery mud pump: 变量泥浆泵下载手机词典可随时随地查词查翻译