无运动的

The control method is special for the angular position of a circle rotation object without any fixed support point in the drill collar.

钻铤内无固定支撑点的圆周旋转运动状态角的控制方法具有许多特点。

The design of the device using NC Lathe CA6140 control, part of the main transmission system using AC spindle motor and graded by the pulley driven spindle gearbox, through the inverter and gearbox to achieve sub; Feed System used by stepper motor driven ball screw slowdown after campaign vertical feed system through a gear after the ball screw drive, in the horizontal feed system through two gear-driven ball screw; Tool to automatically transfer tool carrier (4-position), thus achieving automatic tool change; by MCS-51 series 8051 data to be dealt with. from the I / O interface stepper pulse output signal to control the feed rate and itineraries; In order to maintain the function of cutting thread, to the outer end of spindle or other appropriate location loaded pulse generator; Lathe will be transformed into Tailstock manually controlled electric Tailstock.

本设计利用数控装置对CA6140普通车床进行控制，主传动系统部分采用交流调频主轴电动机经带轮及分级齿轮变速箱驱动主轴，通过变频器和齿轮变速箱实现分段无级变速；进给系统采用步进电机通过减速后驱动滚珠丝杠运动，在纵向进给系统中通过一级齿轮减速后驱动滚珠丝杠，在横向进给系统中通过二级齿轮减速驱动滚珠丝杠；刀架改为自动转位刀架从而实现自动换刀；通过MCS-51系列8051单片机对数据进行计算处理，由I/O接口输出步进脉冲信号控制进给速度和行程；为了保持切削螺纹的功能，要在主轴外端或其它适当部位装上脉冲发生器；将车床的手动尾座改造成为可控电动尾座。

The design of the device using NC Lathe CA6240 control, part of the main transmission system using AC spindle motor and graded by the pulley driven spindle gearbox, through the inverter and gearbox to achieve sub; Feed System used by stepper motor driven ball screw slowdown after campaign vertical feed system through a gear after the ball screw drive, in the horizontal feed system through two gear-driven ball screw; Tool to automatically transfer tool carrier (4-position), thus achieving automatic tool change; by MCS-51 series 8051 data to be dealt with.

本设计利用数控装置对CA6240普通车床进行控制，主传动系统部分采用交流调频主轴电动机经带轮及分级齿轮变速箱驱动主轴，通过变频器和齿轮变速箱实现分段无级变速；进给系统采用步进电机通过减速后驱动滚珠丝杠运动，在纵向进给系统中通过一级齿轮减速后驱动滚珠丝杠，在横向进给系统中通过二级齿轮减速驱动滚珠丝杠；刀架改为自动转位刀架从而实现自动换刀；通过MCS-51系列8051单片机对数据进行计算处理，由I/O接口输出步进脉冲信号控制进给速度和行程；为了保持切削螺纹的功能，要在主轴外端或其它适当部位装上脉冲发生器；将车床的手动尾座改造成为可控电动尾座。

Many handlers cause their dogs to move inefficiently by using a tight lead.

很多Handler使用紧迫的牵引方法造成他们的狗无效率运动。

Artificial joint replacement basically meets the physical requirements of joint function, maintains majority of normal range of motion, and restores majority of joint function. Moreover, the prosthesis source is abundant with no rejection.

人工关节置换可以基本符合运动损伤后关节功能恢复的生理要求，保持原关节的大部分活动度，恢复后大部分功能良好，而且假体来源不受限，无排斥反应。

Neutrinos and the hypothetical gravitons, also massless particles, move at the same speed as light.

中微子和假想的引力子也是无质量粒子，它们也以与光相同的速度运动。

When the total angular momentum is zero, the attitude motion equations take on nonholonomic constraint.

系统的控制问题可转化为无漂移系统的非完整运动规划问题。

This paspalum turfgrass offers golf courses and other sports venues unparalleled playability and cosmetic appearance.

这种草种给高尔夫球场和其他运动场地提供了空前的击球性和无语伦比的观赏性。

The reason for the discrepancy is that this portion of the Perseus arm has anomalous motions.

存在差异的原因是英仙旋臂的一部分存在无规则运动。

Results Psychometry revealed that in PD group the scores of every tests in verbal part were significantly lower than that in control group,and the average value of performance QI was less than that of verbal IQ in PD group.There was no correlation between the course of PD with the scores of every test,whereas motor dysfunction had negative correlations with the scores of every test.The duration of education had close relation with knowledge,apperception,similarity,vocabulary and the aptitude of figure filling-in.

结果 PD组言语部分各分测验成绩均显著低于对照组；PD组操作智商的平均值低于言语智商的平均值；PD组患者病程与各分测验无相关关系，运动功能障碍与各分测验有负相关关系，受教育年限与知识、领悟、相似性、词汇、填图有密切相关关系。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。