steel butt joint的用法和樣例：
例句
- The early losing effectiveness causes of the superheater pipe welding joint were investigated and analysed.
針對某電廠異種鋼焊接接頭高溫早期失效的過熱器管件進行了調查研究和失效分析。 - The microstructure and fine structure of weld fusion zone for high strength fine grain steel were studied.
研究了高強度細晶粒碳素鋼焊接接頭熔合區附近的顯微組織及精細結構。
