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。
Drillers and Blasters? Surface Mining, Quarrying and Construction.
钻孔者，爆破工？表层采矿，采石和建筑。
Complementing Orica's Bulk Systems and Packaged Explosives products, these products are suitable for application in surface and underground mining, construction, quarrying and tunnelling applications.
这些产品使澳瑞凯的散装系统和包装爆炸品得到进一步完善，适合露天和地下采矿、建筑、采石和隧道开挖应用。
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