片语
mine resource exploitation矿山资源开发
mine exploitation and construction矿山开发建设
Nickel molybdenum mine exploitation镍钼矿山开采
JINHAI MINE METALLURGICAL EXPLOITATION金海矿冶开发公司
coal mine exploitation煤矿开采
coal mine exploitation license采矿证
mine resources exploitation矿产资源开发
mine industry exploitation矿业开发
Mine exploitation and mine environment矿山开发和矿山环境