溶よう接せつ部ぶ分ぶんようせつぶぶんMeanings1nounwelded part; weld zoneRefers to the physical area or section where welding has been performed, often in technical or industrial contexts.溶よう接せつ部ぶ分ぶんの強きょう度どを試し験けんする。Test the strength of the welded part.溶よう接せつ部ぶ分ぶんにひびが入はいっていた。There was a crack in the weld zone.