资讯

Natural air is flowing to the area where three contractors are trapped in a northern British Columbia mine, the operator’s safety chief said, adding that there appears to be a stable rescue ...
The company, based in Denver, said the rescue operation involved drones and a remote-controlled scoop that dug away a massive ...
Three workers trapped 284m underground for over 60 hours at a B.C. mine were rescued safely in a complex operation. All are in good condition, officials say.