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| руководства по обращению с опасными материалами | |||
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| Руководства по обращению с опасными материалами | |||
| 英语 词库 | |||
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| HMR (Regulations administered and enforced by various agencies of the Department of Transportation (DOT) governing transportation of hazardous materials by air, highway, rail, water and intermodal means) | |||