摆动

The nature and change in the systems are to be understood from historical development, not from the postulation of gumlao-gumsa structural opposition.

理解该制度摆动的实质应是历史的发展，而不是"贡老-贡嚓"结构对立的假设。

A soft, disposable Powder Puff swungbelow him

一个柔软的，一次性的粉扑轻轻的在他屁股上来回摆动

A soft, disposable Powder Puff swung below him

一个柔软的，一次性的粉扑轻轻的在他屁股上来回摆动

Motion synchronization between tool in X direction and principal axis rotation was controlled by electronic gearbox in cam turning. And profiling mechanism could be superseded by servo tool-holder. Linear motor direct drive servo tool-holder was designed, and host-slave control system with PC and DSP was developed for the require of high-speed and realtime servo. The technical process was analyzed in cam turning. Servo tool holder with tool swinging and principal axis variable rotate speed were presented to keep constant cutting angle and speed.

将电子齿轮箱用于凸轮车削加工系统的传动，以伺服刀架取代了传统加工的靠模装置，实现了刀具X方向直线运动与机床主轴转动的同步控制；设计了直线电机直接驱动的伺服刀架及基于PC与DSP构成的上—下位机控制结构，采用DSP进行实时控制以满足高速伺服需要；对凸轮加工过程的工艺特点与恒角度、恒速度车削进行研究，提出了具有刀具摆动功能的伺服刀架与机床主轴变转速运动方案。

Not only are you slower (even if your rim isn't rubbing against the brakes, its out-of-round profile causes more drag and friction), but the ride is rougher, you have less control, and you could end up on the ground if the wheel folds or a spoke breaks thanks to the pressure of uneven spoke tension.

你不仅会骑的很慢（即使你的车圈没有和刹车发生摩擦，车圈脱离圆轨的摆动也会造成更多的阻碍），而且由于车圈是粗糙的，你将减少对其控制，而由于条幅受到不均等的拉力，你最终将以车圈扭折或条幅断裂为结局。

Some contrastive experiments were carried out to study the difference between the two-joint robotic fish and a one-joint oscillating caudal fin propulsor, which says that the rear passive joint is essential to the reduction of drag period in the whole propulsion cycle.

实验结果表明该两关节仿鱼水下推进器比单关节尾鳍摆动式水下推进器在相同实验条件下具有更高的推进速度。

There are two forms of techniques in the techniques of pull-up/ chinning.

前言 引体向上有两种技术形式：一种为静止发力向上拉起，另一种为摆动发力向上拉起。

They are easy to see because unlike the pupae they have wiggling legs.

它们很容易地看到，因为不像蛹，他们摆动双腿。

A male Quetzal lands on a branch before regaining his nest. Feathers in the wind, he observes the vicinity.

这只雄性凤尾绿咬鹃在返回自己的巢之前，停在树枝上观察周围，尾羽随风摆动。

In this paper, the pressure angle and minimal radius of curvature of cam mechanism with swinging roller follower are discussed in details.

本文对摆动从动杆盘状凸轮机构的最大压力角和最小曲率半径问题进行了详细的讨论。

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。