“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	Sir William Henry Perkin Sir Winston (Leonard Spencer) Churchill SIR人机对话系统 SIR模型 SIS Si Sa Ket sisal agave sisal hemp spinning sisal industry sisal processing SISD system sishencong Sishengpianhai sisheng pill Si Sheng Wu Yin Jiu Nong Fan Niu Tu sishen pill Sishigongbao Memorial Archway Sishui Anshan Temple Ginkgo Sishui fur sheep Sishui Xian SISI SIS mixer sisomicin sisorid catfishes SISO system

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