Welding
来自Big Physics
late 16th century (in the sense ‘become united’): alteration (probably influenced by the past participle) of well2 in the obsolete sense ‘melt or weld heated metal’.
late 16th century (in the sense ‘become united’): alteration (probably influenced by the past participle) of well2 in the obsolete sense ‘melt or weld heated metal’.