In the middle-late stages of production, as the deepening of the oil field development, the marginal operation output decrease, the cost increases, and the investment increase, too.
在油田开采中后期，随着油田开发程度的加深，措施作业边际产量递减，措施作业边际费用递增，措施作业增量边际成本递增。
There are three stages(early, middle and late) in the development of Wang Li 's views on the nature of Chinese disyllabic roots.
王力先生的联绵字观念分早期、中期和后期三个阶段。
There are three stages(early, middle and late) in the development of Wang Li 's views on the nature of Chinese disyllabic roots.
王力先生的联绵字观念分早期、中期和后期三个阶段。
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