These two principles make the L/C mechanism run at lowest cost, but they bring convenience to L/C beneficiary for fraud.

这两大原则使得信用证机制能以最小的成本运行，但是也为信用证受益人的欺诈提供了便利。

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This paper introduce multiple solutions to maximal flows and, by adjusting circle, presents a simple approach to work out maximal flows at lowest cost.

介绍了最大流问题的多解，提出了通过调整圈来求解最小费用最大流的方法。

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Hot Money, also known as Refugee capital, refers to those short-term speculative capital flowing rapidly in international financial market in pursuit of maximum reward at lowest cost.

热钱(Hot Money)，又称游资(Refugee Capital)，投机性短期资本，指为追求最高报酬以最低风险而在国际金融市场上迅速流动的短期投机性资金。

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An economist welcomes such methods as a way of achieving a stated goal (fewer net emissions) at lowest cost.

ECONOMIST: Economics focus

We mix and match these resources, based on cost and network architecture, to produce the most capacity at the lowest cost.

FORBES: How to Slow the Wireless Juggernaut

And they award contracts to the firm with the best design at the lowest cost.

FORBES: Who Built What?