Warning: file_put_contents(/home/www/wwwroot/zidian/201990.com/cache/f47962c4fb891fedf9b4481573ff9892.txt): failed to open stream: No space left on device in /home/www/wwwroot/zidian/201990.com/index.php on line 55 illinium例句_illinium英汉例句_illinium双解例句_耀久九英英词典
The illinium electrode produces a slim arc when used in welding. With a high level of compression, it has a bigger melting depth in medium and high currents. 钇钨电极在焊接时弧束细长,压缩程度大,在中、大电流时其熔深比较大。 www.sh-chuangyu.com