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。

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This paper discusses the theory of destabilized operation of earthmoving machinery and describes the dynamic analysis of marginal operation conditions. A simple calculation method is given.

本文探讨了铲土运输机械作业稳定性的失稳机理，对机械作业的极限工况进行了动态分析，并给出了简便算法。

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In order to achieve the best operating result at the least cost, the marginal cost of administrative law operation should be studied.

为达到以最少的成本支出获取最佳的运行效果，还必须对行政法运行的最佳成本边际问题进行研究。

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For example, the ECB has a deposit facility that pays interest to banks, an emergency marginal lending facility for overnight borrowing and a weekly refinancing operation in which it lends money to banks.

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