英语词汇“jointless rail-line”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	jointless rail-line
释义	jointless rail-line 基本例句无缝线路 Welded rail tunnels used mobile CWR rail contact welding method for China's domestic initiative.隧道内焊轨采用移动式无缝线路钢轨接触焊施工方法，为中国国内首创。
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