煤炭开采和洗选业 mining and washing of coal industry ; Mining and Washing of Coal
数据开采和知识发现 DMKD
不合法开采和 By Illegal Mining And
开采和出口国组织 OGMEC
黄金开采和出口国组织 OGMEC
系统采购、开发和维护 Information system acquisition, development and maintenance
开采段和安泵段 Mining and residential pumps segments
开发和采购材料 Development and Procurement of Materials
石油开采的污染和防治 pollution control in petroleum exploitation
钻井和开采设备 Drilling and production equipment
由于化石燃料储存能源的方式，使其开采和出售都非常便宜。
Fossil fuels are, in terms of the energy they store, remarkably inexpensive to get out of the ground and sell.
他们的研究帮助他们在石油开采和石油天然气定位方面开发新的工作程序。
Their research helps them develop new procedures for drilling and find new locations of oil and gas reservoirs.
但现在，旅游业、镍矿开采和旅居国外的古巴人的汇款是外汇的主要来源。
But for now, tourism and nickel mining, along with remittances from Cubans living abroad, are the country's largest sources of foreign currency.
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