关键词：大型齿轮；螺旋线偏差；圆光栅 [gap=324]Key words： Large gear； Spiral deviation； Radial grating
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micro radial grating 微型圆光栅
metric radial grating 计量圆光栅
Metrological radial grating 计量圆光栅
high density radial grating 高密度圆光栅
Circular and radial grating 圆环栅和射线栅
Radial metal grating 金属光栅盘
This article introduces a method of measuring the radial of a concave lens with laser, grating and vemier caliper.
介绍了一种利用激光、光栅、游标卡尺测量凹透镜球面半径的方法。
That transmission rate and the FWHM of the fiber grating FP are very sensitivity for radial strain. But the central wavelength, mode number of the fiber grating FP are insensitivity for radial strain.
发现光纤光栅F P干涉仪的透射率和光谱半宽度对轴向应变十分敏感，而F P腔的中心波长和工作模式却变化较小。
Chondrules in the Jilin meteorite may be divided into two groups: normal rapid cooling(granular and porphyritic) chondrules and supercooling(grating and excentro-radial)chondrules.
吉林陨石中的球粒分为正常快速冷却和过冷冷却球粒两种。
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