“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	thermal instability thermal insulating material thermal insulating refractories thermal-insulating value thermal insulation thermal insulation and wave transparent material thermal insulation coating thermal insulation coatings thermal insulation engineering thermal insulation glass coating thermal insulation in livestock housing thermal insulation material thermal insulation material for liquid propellant tank thermal insulation tile thermal insulator thermal interface materials thermal inversion layer thermal ionization thermal ionization isotope mass spectrometry thermal ionization mass spectrometry thermal ionization mass spectrometry (TIMS) thermal ionization vacuum gauge thermal IR imagery thermal isolation thermalization

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。