Center spot

基本解释中空滤光镜

网络释义

1)Center spot,中空滤光镜2)black glass,neutral filter,中性滤光镜3)medium yellow filter,中黄滤光镜4)neutral density filters,中性密度滤光镜5)Neutral density filter,中灰密度滤光镜6)spatial/optical matched filters,空间/光学匹配滤光镜

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行业英语