短語詞組短語spill -off valve 分路式流量閥Bosch spill -valve injection pump 回油孔閥式噴油泵metering spill valve 計量回油閥pressure drop spill valve 壓差回油閥門flow spill valve 溢流閥門fuel pump spill valve 燃油泵回油閥proportional spill valve 比例溢流閥spill valve pump 溢流閥式噴油泵 返回 spill valve