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照相闪光照明光源 光谱分布指数(ISO/SDI)的测定
Camera flash illuminants--Determination of spectral distribution index (ISO/SDI)
价格：￥0.00
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35mm影片光学声迹的还音电声频率响应特性
Overall electro-acoustic frequency response for repro-duction of 35mm optical sound track—Reproduction cha-racteristics
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照相机用电子闪光装置与同步线的连接件型式及尺寸
Types and dimensions for connectors of electronic photoflash equipment to synchro-cord
价格：￥0.00
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照相机用电子闪光装置闪光指数的确定
Determination of flash guide numbers for electronic photoflash equipment
价格：￥0.00
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照相机焦平面曝光量的光电测量方法
Photoelectric method for measuring exposure in focal planes of camera
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照明用电子闪光装置技术条件
Specifications of electronic flash equipments for photograph
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家用和类似用途电器的安全 投影仪和类似用途器具的特殊要求
Household and similar electrical appliances.Safety.Particular requirements for projectors and similar appliances
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