速度

If some particles trended to local extremum in PSO algorithm implementation, the particle velocity was updated and re-initialized.

在PSO算法的运行过程中，对有集聚倾向的粒子进行速度变异处理，重新初始化速度。

Ship speed was first calculated by dropping overboard a log attached to a reel of line knot ted at regular intervals; the number of knot s exposed while the log drifted and a sandglass emptied gave the vessel's speed in knot s.

船的速度最早的计算方法是往船外丢上一节木头，上面绑着一捆绳子，每隔固定的间距打个绳结；当木头漂浮而暴露在外绳结数目，加上沙漏的时间，就得到船的速度，称为节。

Ship speed was first calculated by dropping overboard a log attached to a reel of line knotted at regular intervals; the number of knots exposed while the log drifted and a sandglass emptied gave the vessel's speed in knots.

船的速度最早的计算方法是往船外丢上一节木头，上面绑着一捆绳子，每隔固定的间距打个绳结；当木头漂浮而暴露在外绳结数目，加上沙漏的时间，就得到船的速度，称为节。

Ship speed was first calculated by dropping overboard a log attached to a reel of line knotted at regular intervals; the number of knots exposed while the log drift ed and a sandglass emptied gave the vessel's speed in knots.

船的速度最早的计算方法是往船外丢上一节木头，上面绑着一捆绳子，每隔固定的间距打个绳结；当木头漂浮而暴露在外绳结数目，加上沙漏的时间，就得到船的速度，称为节。

Descartes, even though he believed that the velocity of propagation was infinite, concluded, on a different level of logic, that K was proportional to a velocity.

笛卡尔，即使他相信传播速度是无限的，推断出，在不同的逻辑的水平上，K 是与速度成比例的系数。

Lorentz force is always perpendicular to and . It cannot change the particle's speed and can change only the direction of (and such the direction of travel).

始终与电荷的运动方向垂直，因此洛伦兹力不改变运动电荷速度的大小，只能改变电荷速度的方向，使路径发生弯曲。

The number expressing the velocity of light appears explicitly in the Lorentz transformation, and plays the role of a limiting case, like the infinite velocity in classical mechanics.

表示光速的数明显地出现在洛伦兹转换中，并且如同经典力学中的无限大速度那样，光速将成为一个极限速度。

Gas speed through louver ring and gas speed from the space between dam ring and armor ring are very important.

通过百叶环的气流速度，以及通过挡环及防护环之间空间的气流速度是很重要的。

In the low-low satellite to satellite gravity mission, the intersatellite range and range-rate data are the observable values, while the intersatellite acceleration can be derived from the range-rate through digital differential. Using acceleration data, people can avoid solving the variation equations of the satellite motion and simplify the observation equations. But on the other side, the digital differential will amplify the observation noises and finally affect the solved geopotential accuracy.

低低卫星跟踪卫星的观测量是两低轨卫星的星间距离或星间速度，星间加速度由星间速度通过数值微分导出，用星间加速度作为观测量可以避免解算卫星运动的变分方程，简化观测方程的建立，但数值微分会使观测噪声放大，从而影响重力位的解算精度。

As the bikes run on low-resistance tracks and the pods are far more aerodynamically efficient than a bicycle, with less frontal area, most riders can see speeds of 45 km/hr and on a longer circuit with a much longer straight, much higher speeds can be expected.

作为自行车上运行的低轨道上的阻力和豆荚远远aerodynamically的效率比骑自行车，少额叶区，大部分乘客可以看到，速度45公里/小时，并在一个较长的电路长得多直，高得多的速度可以预期。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷