Semiconductor alternating voltage converters. General technical requirements.
Преобразователи переменного напряжения полупроводниковые. Общие технические требования. |
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GOST 12.2.228-2004SSBT. Occupational Safety Standards System. … |
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SP 37.13330.2012Industrial transportation code of practice. … |
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GTN 63Welders Qualification Procedures |