短語詞組短語proportional combustion control 比值燃燒控制proportional flow control 比例流量控制electrohydraulic proportional force control 電液比例控制proportional hydrualic control 電液比例控制Proportional Integration Control 比例積分控制特性proportional directional control block 比例多路換向閥proportional flow control unit 比例流量調(diào)節(jié)器load proportional brake control 感載比例制動控制Voltage Proportional Current Control 電壓與電流比例控制;進行 返回 proportional control