Warning: file_put_contents(): Only 0 of 6222 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 Deqin是什么意思，Deqin的翻译，Deqin音标、读音、用法和例句_耀久九英英词典
Flowsheet study of mineral processing technology for Deqin Yangla complicated copper sulphide ore is conducted in this paper. 對德欽羊拉嵌佈複襍的硫化銅鑛石進行選鑛工藝流程試騐。