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Cameras for 35-mm film. Basic dimensions of threaded connections of lenses with cameras
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Distribution networks of cable TV systems. Basic parameters. Technical requirements. Measurement and test methods
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Optical fibres. Part 1-49. Measurement methods and test procedures. Differential mode delay
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Integrated microcircuits. Methods for measuring delay time of the switching on/off the voltage comparators
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Low-power vacuum valves. Methods for measurement of input resistance
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