短語詞組短語pumping g speed 泵速high pumping -speed cryopump 大抽速低溫泵Max Pumping Speed 最大氣量effective pumping speed 有效抽速Vacuum pumping speed 真空抽速High Pumping Speed 抽氣速氣高Pumping Speed MM 進(jìn)氣口徑pumping speed s coefficient 抽速系數(shù) 返回 pumping speed