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。
Now, because of dredging, quarrying, construction mining, natural factors such as inter-side so that it will see a bright future and become unearthed ebony.
现在，由于挖沙，采石，施工挖掘，自然跨方等因素而使其重见天日，成为出土乌木。
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。
Because the rock quarrying and filling are greatly influenced by the climate, the construction method and quality control are the most key link in the construction of rockfill dam.
由于堆石料的开采与填筑等施工受气候的影响较大，因此施工方法和质量控制是最关键的环节。
Take the quarrying of the Lagos harbor moles repairing project in Nigeria as example, this paper introduces the blasting design and construction technology.
以尼日利亚拉格斯防波堤修复工程石料开采为例，介绍石料开采爆破设计、施工工艺。
Take the quarrying of the Lagos harbor moles repairing project in Nigeria as example, this paper introduces the blasting design and construction technology.
以尼日利亚拉格斯防波堤修复工程石料开采为例，介绍石料开采爆破设计、施工工艺。
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