“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	weft-knitted denim weft-knitted fabric weft-knitted fabric stitch weft-knitted honeycomb fabric weft-knitted jacquard stitch weft-knitted lap fabric weft-knitted laying-in stitch weft-knitted mattress weft-knitted plush stitch weft-knitted quilted fabric weft-knitted space distance fabric weft-knitted tissue notation weft-knitted wrap stitch weft knitting weft knitting decorative fabric weft knitting machine weft knitting needle device weft knitting shogging mechanism weft knitting system weft-patterned brocade of the Tang dynasty weft plated stitch weft selector weft-stop motion weft straightening weft winding

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