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正位移 [zhèng wèi yí]
[力] positive displacement
- 颏顶点、下颌角点均表现为X、Y轴向的正位移，Z轴向的负位移。
Results Gnathion and g onion showed positive displacement on X and Y axes and negative displacement on Z axis. - 塑化输送靠特定形状的空间容积变化完成，具有完全正位移特性，效率提高；
The plasticating and conveying process can be obtained with the volume change of the cavity with specific shape, the process shows the character of positive displacement and high efficiency. - 高温泵属于正位移泵，工作时依靠主、从动齿轮的相互啮合造成的工作容积变化来输送熔体。
Heat pumps are positive displacement pumps, the work rely on the Lord, each driven gear meshing of the volume of work caused by changes in the melt conveying.
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