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
unit step displacement [数] 单位阶跃位移
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
unit sliding displacement 单位滑动位移量
displacement measuring unit 位移测量装置
Because of its excellent part load efficiency, many compressor unit is used mainly in the occasions for large displacement in high pressure piston compressor applications.
由于其出色的部分负荷效率，多压缩机机组主要应用于的场合为大排量中高压活塞式空压机应用领域。
The coupling between bridge and track adopts by beam unit, modulus of electricity of and yielding stress according to the broken line of the non-liner rail longitudinal resistance of displacement.
桥梁和轨道的联结采用非线性梁单元模拟，其材料弹性模量和屈服应力通过轨道纵向位移阻力与梁轨相对位移关系的双折线化确定；
On the basis of a large number of field test data, the regression of the displacement coefficient and system efficiency for pumping unit wells were established.
本文在抽油机井大量现场测试数据的基础上，建立了抽油机井系统效率、排量系数这两个重要指标与诸影响因素之间的回归方程。
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