英语词汇weld back-up怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	weld back-up
释义	weld back-up 简明释义焊缝背垫网络释义 1 ?焊缝背垫 ... weld assbly烧焊组件 weld back-up焊缝背垫 weld backing焊缝衬垫 ... 双语例句 1 Flux-cored wire is applied to the austenitic stainless steel pipe by back weld, MAG for the filling and cosmetic weld, at horizontal fixed round welding vertically up. 采用药芯焊丝对奥氏体不锈钢管道进行打底焊接，MAG焊填充及盖面焊，立向上的水平固定全位置焊接。
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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。