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Unified system of design documentation. Graphic symbols for use in electric schemes, systems of information transmission with temporal division of channels
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Roller transmission chains for cycles. Specifications
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Methods of testing the chemical products hazardous to the environment. Determination of acute toxicity for daphnia
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Optics and photonics. Metric thread for optical instrument making. Basic dimensions and tolerances
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Programme and test methods of bellows compensators and seals. General requirements
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