A glacier next to a nearby zinc and lead mine has retreated since the site closed in 1990, exposing an outcrop of metal-rich ore, where drilling will start again soon.
一座铅锌矿在1990年关闭后，周围的冰川就不断缩小，暴露出金属含量丰富的矿石，因此钻井工作将会很快开始。
According to different external conditions, 16 fire blocks are divided into 3 types: mine vacant space fire, small coal-pit fire and seam outcrop fire.
根据外因条件不同将乌达矿区16个火区划分出大矿采空区起火、小煤窑起火和煤层露头起火3种类型；
According to different external conditions, 16 fire blocks are divided into 3 types: mine vacant space fire, small coal-pit fire and seam outcrop fire.
根据外因条件不同将乌达矿区16个火区划分出大矿采空区起火、小煤窑起火和煤层露头起火3种类型；
应用推荐