The micro-structure of hardening layer and motherly-body is different, which provide passibility for measuring the depth of hardening layer by supersonic ware.

由于硬化层与基体的微观结构不同，也就为超声波测量硬化层的深度提供了条件。

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Since the angle of the shock is a function of the body angle, supersonic aircraft have very sharp noses and leading edges so that the oblique shock wave is produced at as small an angle as possible.

由于冲击的角度是弹体角的一个影响因素，超音速飞机的机头都很尖、机翼前缘也很薄，以使产生的斜激波的角度尽可能地小。

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The invention relates to a method of removing algae in water body by using low-intensity supersonic to intensify the coagulating course, belonging to water treating application field.

本发明涉及一种利用低强度超声强化混凝过程去除水体中藻类的方法，属 于水处理应用领域。

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For this jump, the team also worked to create a new generation of space suit for better mobility and visual clarity, studied the effects on the human body of supersonic acceleration and deceleration, developed a new parachute system, and more.

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