Drillers and Blasters? Surface Mining, Quarrying and Construction.
钻孔者，爆破工？表层采矿，采石和建筑。
They are employed by mining, quarrying and construction companies and by drilling and blasting contractors.
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。
Experience as a blaster helper in surface mining and quarrying or construction may be required for blasters.
爆破工需要具备地表采矿和采石或建筑爆破帮手的经验。
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