'China has made positive achievements in major nonferrous metal mineral prospecting,yet without any significant breakthrough;with the increase of mining intensity,the declining reserve-production ratio is becoming...'China has made positive achievements in major nonferrous metal mineral prospecting,yet without any significant breakthrough;with the increase of mining intensity,the declining reserve-production ratio is becoming more and more obvious,'said Shang Fushan,Vice President of China Nonferrous Metals Industry Association.展开更多
文摘'China has made positive achievements in major nonferrous metal mineral prospecting,yet without any significant breakthrough;with the increase of mining intensity,the declining reserve-production ratio is becoming more and more obvious,'said Shang Fushan,Vice President of China Nonferrous Metals Industry Association.
