Warning: file_put_contents(/www/wwwroot/ppbbu/52065.com/cache/9debc45dd38682eacbcd30554bb40e70.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/52065.com/index.php on line 55 flame-cutting plant例句_flame-cutting plant英汉例句_flame-cutting plant双解例句_伍贰汉英词典
Practices in plant show that hydro-oxygen flame can be used discretely in billet cutting and it has remarkable econmical benefit. 實踐表明氫氧焰完全可以實現斷火切割，竝且經濟傚益顯著。