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关注：1
2013-05-23 12:21
求翻译：金属焊接作业人员，必须经专业安全技术培训，考试合格，持证上岗，独立操作。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
金属焊接作业人员，必须经专业安全技术培训，考试合格，持证上岗，独立操作。
问题补充： |
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2013-05-23 12:21:38
Welding operators must be approved by the professional security training, examination, certificates, independent operation.
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2013-05-23 12:23:18
正在翻译，请等待...
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
Metal welding operations personnel must be approved by the professional safety technology training and pass an examination, a holder, independent operations.
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2013-05-23 12:28:18
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