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精密刻蚀及加工|Precision etching
金属码盘|Metal encoder
机床转台码盘|Rotary encoder
码盘狭缝|Slit window
光栅盘|The grating disc
绝对式码盘|Absolute encoder
目镜分划板|Eyepiece graticule
分划板|Graticule
视力盘|visual disc
畸变测试卡|Distortion test card
鉴别率板|Identification plate
模板光绘|Mask