所谓光速不变是光的波动速度不变。
The so-called velocity of light invariable is the light fluctuation speed is invariable.
风电输出功率波动速度快慢？
光的波动速度不变。
他们的计算表明，快速而持续的微小空气波动可以使毯子达到每秒一英尺(译者：30.48厘米)的飞行速度。
Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second.
股票价格也从没有像这样，以惊人的速度用绿色光芒的数字在电子磁带上这样上涨、波动、下跌，然后再次波动。
Never have the stock prices, which are flashed in green on the electronic tapes overhead, surged, dipped and surged again with such stupefying speed.
不仅仅是商业周期到了生产率增长速度减慢这一点，它还有加剧暂时生产率波动的几个特征。
Not only has the business cycle reached the point at which productivity growth usually slows, it also has several characteristics that may have exacerbated temporary productivity swings.
但大气波动会影响信号的传播速度，从而导致计算错误。
However, errors creep in when atmospheric fluctuations disrupt the signal speed.
但是例如20世纪70年代的油价震荡也迫使东北部的住户们转向到天然气，尽管天然气价格的偶尔波动会减缓这种转移速度。
But oil shocks, such as those of the 1970s, helped drive Northeast homeowners to natural gas, even if occasional spikes in gas prices slowed the shift.
由于我司生产的抓斗阀组带压力补偿功能，流量跟外负载无关，速度不随负载波动。
The valve group is provided with the function of pressure compensation, which keeps the speed stable, not influenced by external load.
在张力波动范围窄、张力数值较小的控制系统中，采用矢量闭环控制，通过对收放卷速度的补偿，能收到较好的效果。
In the system with little tension fluctuation and numeric, by compensating the reeling in and out rate, adopting vector close-loop control can get better effects.
增大拉伸比、拉伸速度和拉伸温度能有效地减小张力波动和不匀率。
The tension fluctuation and irregularity of fiber decreases with the increase of drawing ratio, speed and temperature.
结果表明，拉伸比、拉伸速度和拉伸温度对纤维张力、张力波动和不匀率均存在着明显的影响。
The test results showed that the influence of drawing ratio, speed and temperature on the tension, tension fluctuation and irregularity of the fiber were obvious.
脉冲发生机构速度波动的大小，显著影响无级变速器的动力学性能。
The impulse value of a impulse mechanism has a notable influence on the dynamics capability of impulse variable speed device.
偏移的目的是要反演波动方程系数的奇性(层速度的间断面)。
The purpose of migration is to inversely solve for the singularity (interrupted surface of interval velocity) of wave equation coefficient.
结果表明，在地层随机激励作用下，钻柱的振动将会引起钻压的波动，从而影响钻头的寿命及其钻进的速度。
The results show that the vibration of drilling strings will produce the fluctuation of weight on bits by random excitation, so the bit life and drilling rate are affected largely.
必须把握好经济非均衡增长和周期波动条件下适度经济增长速度的特点。
It is necessary to grasp the features of moderate growth rate of economy un-der conditions of disproportional growth and cyclical fluctuation.
设计合理时初级的更替不会造成速度严重波动；
The subrogation of primaries will not bring serious velocity fluctuation if the design is appropriate.
无论是轴向、径向固含率还是固体颗粒的径向速度都是随时间波动的。
Axial and radial holdups of solid particles and radial velocity of solid particles are all fluctuating with time.
结果表明，在大、小锥段交接处附近的流场更加顺畅，特别是水力旋流器轴向速度的波动明显减少。
The result shows that the flow field near the connection of the big and small cone sections is more fluent, particularly the fluctuation of the axial velocity of the hydrocyclone is greatly reduced.
当介质的速度在横向上存在较大的变化时，波动方程时间偏移不能使地下的构造正确成像。
Wave equation time migration fails to image subsurface geological structure correctly in the case of obvious lateral seismic velocity variation.
分析结果表明，接触导线线质、张力和刚度以及列车运行速度、波动传播速度和抬升力是影响导线疲劳可靠性的主要因素。
Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires.
不同条件下的FI值在大小、延迟时间、波动幅度以及增长速度上表现出明显的区别。
The difference of FI produced in given condition are the value, the retard time, the range of variation and the increasing speeds.
汇率是必须要考虑的因素。当汇率波动时，世界范围的通货膨胀速度不一致。
Monetary exchange rATes must be considered. While exchange rATes fluctuATe, inflATion around the world advances AT varying speeds.
本文根据波动理论推导出在重力作用下波的传播速度表达式，分析了微小波动中表面张力的作用。
Based on the mechanics of wave, the expression of water wave propagation velocity under the action of gravity is deduced and the effect of surface tension on small wave is analyzed.
计算实例表明，使用这个方法可以缩短插补计算时间，实时性好，插补精度高，进给速度波动范围小。
The simulation calculating shows that, the computing time can be shortened, the real-time operation is good, the interpolation accuracy is higher, and the feed speed is even.
其次，本文对我国货币流通速度的长期趋势和短期波动现象进行描述与论证。
Next, this paper gives a description and demonstration of long-term trend and short-term fluctuation of China's monetary velocity.
而群速度（U）符合于波动的不同周期，不同速度的各种因素叠加的净结果。
The group velocity(U) corresponds to the net result from the addition of all elements with different periods and different velocities within the wave motion.
提出用拉深区速度波动量、拉深速度、拉深深度、拉深角为评价压力机八杆内滑块机构性能优劣的指标。
This paper addresses that speed fluctuation amount of drawing area, drawing speed, draw depth, draw Angle shall be used as the indexes to evaluate the performance of the inner sliding block mechanism.
提出用拉深区速度波动量、拉深速度、拉深深度、拉深角为评价压力机八杆内滑块机构性能优劣的指标。
This paper addresses that speed fluctuation amount of drawing area, drawing speed, draw depth, draw Angle shall be used as the indexes to evaluate the performance of the inner sliding block mechanism.
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