查询词典 impact force

The growth of these structures was initially driven only by the attractive force of gravity, but then later there was competition with the repulsive force of dark energy.

这些宇宙空间中的结构最初是由于万有引力的作用开始进化的，但不久之后就有暗能量的反重力作用与其对抗。

Based on the formula of attractive force the functional relationships among attractive force,coil current and speed of armature are acquired,and the simulation of dynamic characteristics is given.

随后分析了影响电磁铁的快速性和可靠性的因素，明确了可用于评价快速性和可靠性的重要参数，为理解直流电磁铁的动特性并提高直流电磁铁的设计水平提供了一种思路。

1Institute of Aviation Medicine, Air Force, Beijing 100036, China, 2Air Force Radar Academy, Wuhan 430010, China

1空军航空医学研究所，北京 1000362空军雷达学院，湖北武汉 430010

According to the labour force axiology of Marx, value and surplus value are labour force creation.

根据马克思的劳动力价值论，价值和剩余价值是劳动力创造的。

Back electromotive force was measured by continuous pulse-computer and the influencing factors for back electromotive force and current efficiency were studied in detail.

研究了在SrCl2-SrF2-BaF2的电解质体系中熔盐电解法制备高浓度Al-Sr合金，采用连续脉冲-计算机法测定电解过程的反电动势并且对反电动势和电流效率的影响因素进行了详细的研究。

In this paper, the change of back electromotive force current with the different PWM modes are analyzed in detail on the base of BLDCM model. According to theory and experiment ,ON-PWM type restrains the peak value of back electromotive force current and brings the lest effect to the motor control system.

基于无刷直流电动机的数学模型，分析比较了不同PWM调制方式下反电势电流的变化规律，并通过理论推导和仿真实验证明了当电机系统采用ON-PWM调制方式时，能有效地抑制反电势电流的峰值且对电机控制系统造成的影响最小。

In addition, since the back electromotive force occurring in an inductance element is cleared to zero during a half wavelength of period of the cosine wave, speed electromotive force can be measured by immediate shifting from a setting period to a measuring period.

另外，由于在余弦波的周期的半波长期间，使在电感元件中产生的反电动势VL清零，通过立即从设置周期转移到测量周期，能测量速率电动势。

The balanced labor force price is a category of complete free market, and is an outcome of complete competition between labor force supply and demand.

劳动力均衡价格是完全自由市场经济的范畴，是劳动力供给与劳动力需求完全自由竞争的产物。

Force NB form of a balanced force system.

系。 由平衡的几何条件，力多边形封闭，故

When N is equal to 1, the repulsion is the same with balanced force, distance is kept, and force is not displayed, is called to be pressure.

N=1 的时候，斥力相等，力平衡，保持距离，不显示力，叫压力，因为每点都均衡，但不是没有力，而力是双方立方力的总和。

We got alerted a couple of times while we were down south that HETs were on the way to bring us back up north because things were going to go hot again, but it was just rumors.

南下的途中我们不只一次得到警告说重型装备运输车将拉着我们重新北上，因为局势正在变得重新紧张起来，但这只是谣传。

It's the one where they find the ghost in the salt mine.

这一集是演他们在盐矿找到鬼