“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	cell probe model cell production cell proliferation and differentiation disorder cell purity control cell quantification measurement cell recognition cell reference material cell regulation reactions cell reprogramming cell research cell Reynolds number cell rotary model cell safety control cell saver technique cell senescence cell separation cell signaling cell signaling network modeling cell signaling pathway cell signaling transduction cell signal transduction cell signal transduction disorder cell simulation cell sorter cell sorting

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