SNT-TC-1A关于无损测试作业人员资格认定与证书的意见
SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
2级和3级操作人员，持有美国无损检测协会（ASNT）资格证，并且具有无损探伤作业的相关经验。
Evidence that Level 3 and Level 2 operatives hold appropriate ASNT qualifications and have relevant experience in NDE activities.
必须由具有专业资格的人员进行接线作业，否则有触电危险。
The wiring must be carried out by qualified personnel, otherwise electrocution can occur.
必须由具有专业资格的人员进行接线作业，否则有触电危险。
The wiring must be carried out by qualified personnel, otherwise electrocution can occur.
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