机械设备的大修理与更新之间存在合理的经济界限。
There is a reasonable economic limit between general overhaul and renewal of mechanical equipment.
油藏经济界限产量研究是目前油田改变经营方式的主要依据。
Economic limit rate of a reservoir is the major basis of changing oilfield business scheme.
油藏经济界限产量研究是目前油田改变经营方式的主要依据。
Economic limit rate of a reservoir is the major basis of changing oilfield business scheme.
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