Warning: file_put_contents(): Only 0 of 5493 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/73904.com/index.php on line 55 nonmetallic是什么意思，nonmetallic的翻译，nonmetallic音标、读音、用法和例句_骑士汉英词典
A great effort is made to keep porosity, segregation, impurities, and nonmetallic inclusions to as low a level as possible. 为了保证气孔，偏析，杂事及非金属的含量在尽量低的水平，做了大量的努力。