The test pieces and instrument for side- testing method to measure the depth of destructive layer of fine- ground glass surface are mainly introduced.
本文主要介绍用侧面观测法测量精磨玻璃表面破坏层深度的试件制做、测试仪器；
The measuring principle of metal surface roughness by capacitance method is discussed and the block diagram of measuring instrument and testing results are given.
本文论述了电容法测量表面粗糙度的原理，给出了测量装置的框图和实验结果。
Conclusions The microscopic 3D morphology testing system is an effective instrument for measuring the surface morphology of human incisors accurately.
结论 小尺度三维形貌测试系统可以精确测量牙唇面的微观纹理特征。
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