提出了一种测量三维面形的新方法。
A new method of three dimension shape measurement is presented.
一种测量非球面光学零件面形的新方法。
A new method of surface shape measurement of aspherical optical components.
太阳光环也是由微小、扁平、六面形的冰晶在同地面平行地飘落所引起的。
Solar halos are also caused by small, flat, six-sided, ice crystals that float down parallel to the ground.
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