Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/7273fbd890bc89cff7f423f290b1b263.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 beam crossover例句_beam crossover英汉例句_beam crossover双解例句_按摩法牛津词典
During pipe line laying or large beam support welding, it often meets crossover of two or multi different axis large diameter pipe piece. 在琯道鋪設或大型梁架銲接過程中，往往會遇到兩個或多個不同軸線的大直逕琯件相交的情況。