Welding welding operation must hold professional certificates, and strictly abide by the rules.

气焊电焊必须持专业操作证，并严格遵守操作规程。

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Please attach certified true copies of professional certificates and transcripts of university academic records.

请附上学历学位证书复印件，职称专业证书经公司核实的复印件。

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Please attach certified copies of degree scrolls, professional certificates and transcripts of university academic records.

请附上经公证过的成绩单原件、学位证书、职称专业证书的复印件。

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Magda is a nurse, a qualified pilot, a businesswoman and a philanthropist, a gifted and sensitive lover, the holder of certificates in computing and English grammar, a semi-professional country singer, and a mother.

NEWYORKER: Magda Mandela

The holy grail for e-commerce, however, would be a system in which users had permanent digital certificates on their computers containing details of age, citizenship, sex, professional credentials, and so on.

ECONOMIST: Stop signs on the web