The center of the motion orbit of the rotor changes because of the existence of crack.

由于裂纹的存在，转子轨迹的中心也发生偏移。

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The initial testing shows that there is a better coincidence between the real motion orbit and the modified model.

初步的测试表明，介质实际运动轨迹与修正后的模型有更好的吻合。

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The motion orbit of cutting-tool is simulated dynamically on the computer screen, with test and verification of NC program achieved in the non-real cutting process.

仿真系统模拟数担数控机床硬件插补原理，在计算机上动态地模拟出刀具运动轨迹，实现非实际切削过程中的数控代码验证。

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You've got negative charge in motion, and it's in a circular orbit.

负电荷在运动，它们处在一个环形的轨道中。

麻省理工公开课 - 固态化学导论课程节选

Soon, however, the object's motion suggested it was in an orbit around the Earth.

BBC: New 'moon' found around Earth

It certainly seemed to fit with previous work which had detected a wobble in the star's motion caused by a body the size of Jupiter circling in a very close orbit every 3.5 days.

BBC: We saw it too, say astronomers