“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	wallet administration Walleye pollock trawling fisheries in the north Pacific wallfabric Wall finiteness obstruction wall firing pulverized coal boiler wall fluid layer Wall group wall hanging wall-held protein Wallikunda Rice Scheme Wallingford Riegger Wallinsamfundet Wall invariant Wallis Wallis conical edge Wallis constant Wallis cosine formula Wallis formula Wallis problem Wallis product wall jet Wallis sieve Wallis sine formula Wallman Wallman compactification wall materials

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