搜索结果: 1-1 共查到“矿山工程技术 Informal”相关记录1条 . 查询时间(0.078 秒)
Farmers, Informal Gold Miners Clash Over Pollution（图）
mining， cyanide， mercury
font style='font-size:12px;'>
2007/5/15
ALGAMARCA, Peru, May 4 (IPS) - There is a cemetery at the foot of this hill full of gold and silver near the village of Algamarca in northwestern Peru -- an indication of the risks involved in informa...