Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/8f010df328778c167f1ee616854d7d1a.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 nonmetallic例句_nonmetallic英汉例句_nonmetallic双解例句_欧米惠必应词典
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。