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contact measurement
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contact measurement
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工学
自由曲面测量
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contact measurement
接触式测量
在机械手臂末端安装触针,测量时测球和样品表面直接接触,触针跟随样品表面的起伏而上下移动,通过检测触针在垂直方向的位移,即可得到被测样品的表面形貌的测量方法。
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history of hydrology in ancient China
history of hydropower technology in China
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