但是装置里的麦克风和芯片从传入的声音中采样，并且产生抵消牙钻声的反向波。
But the microphone and chip in the device sample the incoming sound and produce an inverted wave that cancels out just the sound of the drill.
结论上腔静脉流速曲线中心室收缩波和心房收缩反向波速度在评价容量反应性中有一定应用价值。
Conclusions the peak velocities of wave s and wave ar are of good value in assessing the fluid responsiveness.
在连续波泵浦下，反向自发辐射输出功率（ASE-）首先快速地增加到峰值功率，然后单调下降到稳态值；
Under continuous wave pumping, backward amplified spontaneous emission output power (ASE-) rapidly increases to peak value, and then decreases monotonically to steady-state value.
实验观测到两类由弹性表面波的再辐射产生的回波：径向表面反向散射波和纵向表面反向散射波。
Two sorts of echoes caused by the reradiation of elastic surface wave have been observed in experimentation: the radial surface backscattering wave and the longitudinal surface backscattering wave.
它是由水流反向压力波冲击管道设备引起的。
This is caused by the back surge of water to the pumping equipment.
无论是那种市场方向，在一波趋势过后使用这些百分比可以预测反向趋势的摆动程度。
Apply these percentages after a trend in either direction to predict the extent of the countertrend swing.
无论是那种市场方向，在一波趋势过后使用这些百分比可以预测反向趋势的摆动程度。
Apply these percentages after a trend in either direction to predict the extent of the countertrend swing.
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