There are different viewpoints about the wave source in the experiment of vibration of string.

在弦振动“驻波”实验中,对于起振端是波节还是波腹,存在不同的认识.

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Interference of acoustic direct wave source makes accurate determination of underground conditions with acoustic waves difficult.

在浅地层地下物体的声波探测中,沿地表层传播的声直达波干扰是影响探测结果的主要因素之一.

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The disadvantages and improvements - to - be of the shockwave lithotripter are wave source and positioning system.

详细介绍了当今冲击波碎石机在波源和定位系统方面存在的缺陷及有待改进之处.

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