?多道焊
...拌头;多道焊[gap=1482]s: 2219 aluminum alloy; friction stir welding; weld defect; telescopic stir-pin; multi-pass welding...
?多层焊
... 单层焊 single larger welding 多层焊 multi-pass welding 分段多层焊 block sequence & block welding ...
分层多道焊
多层焊
多层多道焊
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。