A high pitched squeaky noise doesn't do it the force of the high frequency sound wave does.

像“叽吱”（划玻璃）一样的高音调的噪音就做不到震碎玻璃，而高频率的音波却可以做到。

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A method where the direction of light passing through a crystal is changed using a high frequency sound wave.

在那里光的指示过去的一种方法透过一颗晶片被使用高的频率声波改变。

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