单词	butt weld
释义	butt weld noun : a butt joint made by welding butt-weld ˈbət-ˌweld  transitive verb Word History First Known Use 1850, in the meaning defined above
随便看	threnos threnus threo- threonic acid threonine threonines threpe threptic thres thresh thresh out threshed threshels thresher thresher shark thresher whale thresherman threshermen threshers threshes threshing threshing floor threshing machine threshings threshold

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