冰川融化还可能有助于在加拿大和俄罗斯等地采矿，以及在北极圈开采石油。
Melting ice may also allow for mineral extraction in areas such as Canada and Russia, and drilling for oil in the Arctic.
他们受雇于采矿，采石和建筑公司，也受雇于钻孔和爆破承包商。
They are employed by mining, quarrying and construction companies and by drilling and blasting contractors.
爆破工需要具备地表采矿和采石或建筑爆破帮手的经验。
Experience as a blaster helper in surface mining and quarrying or construction may be required for blasters.
应用推荐