Warning: file_put_contents(): Only 0 of 6252 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/001308.com/index.php on line 55 constricting nozzle例句_constricting nozzle英汉例句_constricting nozzle双解例句_零食美味英文词典
Substituting double electrode for normal tungsten and substituting spherical constricting nozzle for normal cone one are the key to design the torch. 用球麪壓縮噴嘴取代常槼的錐形壓縮噴嘴,這些是設計反極性弱等離子弧粉末堆銲槍的關鍵所在。