“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	discontinuity discontinuity decomposition discontinuity factor discontinuity formula discontinuity interval discontinuity line discontinuity of performance discontinuity on the left discontinuity on the right discontinuity point discontinuity point of the first kind discontinuity point of the second kind discontinuity set discontinuity surface discontinuous discontinuous boundary condition discontinuous categorical logic discontinuous coefficient discontinuous compactum discontinuous control system discontinuous deformation analysis discontinuous derivative discontinuous distribution discontinuous equation discontinuous finite element method

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