同义词： volume unit capacity unit capacity measure cubage unit cubic measure cubic content unit cubature unit
displacement measuring unit位移测量装置
positive piston displacement metering unit活塞式量油装置
displacement follow up unit位移随动部件
positive displacement refrigerant compressor unit容积式制冷压缩机组
positive displacement refrigerant condensing unit容积式冷凝压缩机组
piezo-ceramic micro displacement unit压电陶瓷微位移器
unit displacement单位位移
unit displacement method单位位移法
a unit displacement产生单位位移
power per unit displacement单位排量功率