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摄影镜头.有效孔径、光圈数和相对孔径的测量方法
Photographic lenses -- Methods for the measurement of the effective aperture, F-number and relative aperture
参考页数：24P;A4
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摄影机镜头的ISO颜色作用指数(ISO/CCI)的测定
Determination of ISO colour contribution index (ISO/CCI) of camera lenses
参考页数：18P;A4
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数字投影机球幕投影鱼眼镜头.技术条件
Technical specifications of dome screen projection fisheye lens for digital projector
价格：￥0.00
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DLP、CRT、LCOS及LCD投影电视屏幕中的菲涅尔透镜
Fresnel lens in DLP, CRT, LCOS and LCD projection television screen
价格：￥0.00
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照相镜头.第2部分:定焦距镜头
Camera lens.Part 2:Fixed focus lens
价格：￥0.00
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照相镜头 第1部分;变焦距镜头
Camera lens--Part 1: Zoom lens
价格：￥0.00
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