摘要
The 14th World Mining Congress and Exhibition was held from 14th to 18th May in Beijing, capital of China. About 3700 mining specialists, professors, scholars, manufacturers and salesmen of mining equipment companies, of which 2700 Chinese delegates, from more than 50
出处
《有色金属》
CSCD
1990年第3期76-,共1页
Nonferrous Metals