“外部标志”的概念、定义、翻译、参考文献-科学参考

单词	外部标志
释义	外部标志 external marks (表示所属国家)
随便看	welding wire machine welding-wire reel welding with backing welding with flux backing welding with weaving welding work welding zone weld-in nozzle weld inspection weld interface weld interval weld-interval timer weld is accepted weldite weld jig weld joint weld junction weld layer weld length weldless weldless connection weldless fitting weldless pipe weldless (seamless) steel pipe (tube) weld line

科学参考收录了1248194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。