Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/1a68b350d9cfd11eda9d0899c6f2c68c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 deoxygen例句_deoxygen英汉例句_deoxygen双解例句_沉淀汉英词典
This can obtain high cast.Cast crack of castings is prevented by grain refinement, strengthening deoxygen and dephosphorization. 通過採取細化晶粒、強化脫氧、脫磷來預防鑄件産生裂紋。