查询词典 pendulum

The pendulum has swung and people are exhibiting greater open-mindedness and a burning desire to determine their own destiny .

舆论发生了剧变，人们表现出更开放的思想以及决定他们自己命运的强烈愿望。

It is recommended to adopt air hammer, pendulum assembly and air motor to minimize or eliminate the well deviation during gas drilling.

建议在现场推广应用空气锤、钟摆钻具组合和空气螺杆钻具组合三项气体钻井防斜技术来防止气体钻井井斜。

In the year of 1954 French scientist Maurice Allais found an unexplained phenomenon: in observing total solar eclipse, Allais found that a pendulum swing plane suddenly changed the direction of motion, that is, when the Earth, the sun and the moon are in a straight line, the law of motion in space will be changed.

在观测日全食时，阿莱发现一只摆的摆动平面突然改变了运动方向，即当地球与太阳、月球在同一条直线上时，会以某种方式改变摆在空间的运动规律。

And make a pendulum displacement curve, analysis of the phenomenon of amplitude modulation.

并做出摆的位移曲线，分析振幅调制现象。

Taking the spring of coupled pendulum s as an uniform elastic rod, characteristic equations are derived for symmetric normal mode and antisymmetric modes.

将耦合摆弹簧作为弹性均匀杆，导出了对称简正模与反对称简正模的本征方程，给出各角频率值的近似式，并进行了讨论

His comprehensive apprehension about the appendix of the pendulum is obvious.

他的关于钟摆的附录的广泛理解是明显的。

An increment feedback control law is then developed and proved to balance the pendulum-angle and drive the cart to track an arbitrary position without estimating the parameter uncertainties .

通过对系统输出的递归分解迭代设计，构成了扩展状态空间上的复杂非线性滑模，结合增量反馈控制，无需对系统不确定性的估计，可以稳定摆的倒立并将小车驱动到任意的距离。

We have applied the proposed method to the balancing problem of the inverted pendulum to show the effectiveness and feasibility of the method.

我们所采用的方法是一种用来显示有效性和可行性的新途径。

Unlike the standard pendulum that swings back and forth, however, this torsion pendulum consisted of a small cylinder that twisted back and forth on the end of a tungsten wire one meter long and 20 micrometers thick.

不同于摇摆反复，然而的标准摆锤，这把扭力摆锤包括了扭转反复在钨导线的末端一米长和20 个测微表厚实的一个小圆筒。

In 1656, Christiaan Huygens invented the pendulum clock, which used weights and a swinging pendulum.

在1656年，克里斯蒂安惠更斯发明了钟摆的时钟，用度量衡和单摆摆动。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失