“welding qualification and certification”的概念、定义、翻译、参考文献-科学参考

单词	welding qualification and certification
释义	welding qualification and certification Encyclopedia 工学金属焊接释 welding qualification and certification焊接资格认证按照从事焊接行业所必需的技能标准或任职资格条件，通过政府或国际认可的考核机构对劳动者的技能水平进行评价和鉴定，并对合格者授予焊接技术资格证书的活动。
随便看	labour of calculation labour organization Labour Party,Norway Labour Party of Canada labour power Labour Problems of China labour productivity labour protection labour protective equipment labourrelations labour rent labour safety and hygiene design labour statistics labour theory of value labour time labour union law labour union library Labour’s Circle LaBr3(Ce) scintillator Labrador current labradorite Labrador Peninsula Labrador Plateau labrador retriever Labrador Sea

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