零点运动
- 网络zero-point motion
零点运动-
另一种可能是氦的晶体中有许多缺陷和晶格空位（也是零点运动所造成的）。
Another possibility is that the crystal of helium contains numerous defects and lattice vacancies ( yet another effect of the zero-point motion ) .
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在分析数控系统中X-Y工作台静摩擦力特性的基础上，针对影响速度过零点运动性能的非线性摩擦因素，提出一种便于工程应用的摩擦力补偿方法。其中外界因素的影响最为重要。
Aiming at the nonlinear friction factors that affect the performance of motion control at zero velocity , this paper analyses the characteristics of pre-sliding friction of X-Y table of CNC machining center , and presents a simple and effective method of friction compensation based on these characteristics .