由于可再生资源具有生命周期，因此从经济收益的角度来讲必然存在一个最优开采期。
Due to the lifecycle of regenerative resources, there must be an optimal period to exploit them for maximum profits.
而在下一繁荣期获得开采更多“核心”资产的最简单方法或许就是大规模并购的复苏，而且要剔除成本。
The easiest way of acquiring more tier-one assets to exploit during the next boom, while stripping out costs into the bargain, may be the revival of the mega-merger.
这是另一堂课的内容，不管怎么说，热力学与开采化石燃料，起源于同一时期，它是普适的。
That's for a different lecture So, anyway, thermodynamics dates from the same period as getting fossil fuels out of the ground. It's universal.
针对主矿采场正值剥离洪峰期剥采比较高的问题，对主矿采场实施陡帮开采的可行性进行论述，并且对陡帮开采方案提出初步设想。
The feasibility of adopting steep slope mining at main quarry is discussed against stripping ratio is high in flood peak period, and the preliminary scheme is put forward.
针对石人沟铁矿露天转地下过渡期开采I区地下采场结构参数问题展开了深入研究。
In this paper, the research is carried out deeply aimed at the problems of the structure parameters of underground stope for transition from open pit to underground Mining in Shirengou Iron Mine.
高含水期下入油水分离器开采时，打隔板控制窜层效果并不明显。
Baffles do not have obvious effect on controlling the interference between injection and production zone in high water cut wells with DOWS.
研究数值模拟在露天转地下过渡期开采矿山的应用，是一项很有价值的工作。
The Study of the application of numerical simulation in the mining of transition period is of great value.
从第一周期开采过程看，注汽效果较好。
The first period of production shows that the result of steam injection is good.
南芬铁矿目前正在进行的三期境界开采的服务年限已经不长了，矿山需要马上着手进行下期深部开采设计。
It will be a short time for Nanfen open-pit iron mine to mine in the third stage. The mine should be engaged on deep part mining design at once.
大冶有色金属公司铜绿山矿二期工程地下开采接近尾声，即将开展三期工程深部开采开拓。
The second phase of underground mining of Tonglushan Mine, Daye Non-ferrous Metals Company, will be finished, and the third phase of deep mining is going to be carried.
过渡期的产量衔接是矿山露天转地下开采关键技术难题之一。
The output connection in transitional period was one of the key technical difficulties during the transition from open-pit to underground mining.
过渡期的产量衔接是矿山露天转地下开采关键技术难题之一。
The output connection in transitional period was one of the key technical difficulties during the transition from open-pit to underground mining.
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