Third chapter introduced in detail about USES the ultrasonic wave method to carry on the three dimensional human body coordinates survey the hardware circuit design.
第三章详细介绍了采用超声波方法进行三维人体坐标测量的硬件电路设计。
By controling the three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制，定位并拉出设定的金丝线型，采用超声波热压球焊方法焊接芯片管脚。
This paper deals with the results of a three-dimensional ultrasonic wave model experiment designed to study the mechanism of refractional diffracted waves.
本文讨论一项用以研究折射绕射波的三度空间超声波模拟实验的结果。
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