... tig welding 惰性气体保护钨极电弧焊 tight lagging 密集背板 tight loading 紧密装药 ...
基于172个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
The outside steel lagging fastens both ends of the pipe and wrap the gasket ring to realize the tight coupling between pipes.
外钢套扣住钢管两端并包裹密封圈。实现钢管密封连接。
youdao
应用推荐
模块上移
模块下移
不移动