So, that researching on the flow of viscoelastic fluid in annulus with the inner cylinder executing a planetary motion has great significance in academic theory in the engineering.
因此研究粘弹性流体在内管做行星运动的环空中的流动具有学术理论意义和工程实际意义。
Planetary motion is also a result of gravitation.
行星的运动也是引力的结果。
In the robot, two planetary gear mechanisms were assembled to realize the radial rectilinear stretching motion and a seal structure was used.
该净化机器人采用两组行星轮系组合来实现关键的径向直线伸缩运动，并合理配置密封来实现上述需求。
If planetary frame is controlled to be fixed, the mechanism can convert motion in a variable speed transmission mode.
若控制另一构件行星架，使它固定，机构即可转换运动，实现变速传动。
A mathematical model of planetary mechanism dynamic coupling device was built after analyzing the characteristics of motion to planetary mechanism.
在分析行星机构运动特性的基础上，建立了行星机构动力耦合装置的数学模型。
Reference efficiency of a pair of gear drive without planetary motion is the base to calculate efficiency of the whole planetary gear train.
齿轮的基本啮合效率是计算行星齿轮传动效率的基础。
Reference efficiency of a pair of gear drive without planetary motion is the base to calculate efficiency of the whole planetary gear train.
齿轮的基本啮合效率是计算行星齿轮传动效率的基础。
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