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State system for ensuring the uniformity of measurements. State verification chain for measuring instruments of length and signal propagation time in optical fiber, average power, attenuation and wavelength of optic radiation for fiber-optical communication and data transmission systems
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Packaging. Accessible design. Handling and manipulation
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Moulding refractory clays. Method for determination of compression strength limit in wet state
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Double-ended bent ring spanners. Construction and dimensions
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