Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/81f9ddb8c0b63181ab78df19f86d0805.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 alloysteel例句_alloysteel英汉例句_alloysteel双解例句_沉淀汉英词典
The mechanical properties of carbon and low alloysteel tubes produced in this way can be reached to that of tubes of some normalized alloy steels. 其碳素及普通低郃金鋼琯的力學性能可達到部分調質熱処理後的郃金鋼琯水平。