A grating auto testing instrument is to realize auto testing to the precision of linear grating.

光栅自动测试仪是对直线透射式光栅的精确度实现自动测试的仪器。

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A grating auto testing instrument is to realize auto testing to the precision of linear grating.

光栅自动测试仪是对直线透射式光栅的精确度实现自动测试的仪器。

youdao