Successive wave fronts in this case form a series of concentric spheres.
相继波前形成了一系列的同心球面。
The key reason of this result is the successive wave created on the skin of dolphin.
产生这一结果的关键是海豚皮肤上的波。
Frequency, current, voltage and pulse width of successive wave and intermittent wave were similar. Frequency, current, voltage and pulse width of sound electric wave changed continuously.
连续波与断续波（续波）的频率、电流、电压、脉冲宽度均相同，声电波的频率、电流、电压、脉冲宽度均为不断变化的。
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