In a reversal of current design trends the MIT concept increases the bypass ratio by minimizing expansion of the overall diameter of the engine and shrinking the diameter of the jet exhaust instead.
与现行设计趋势相反，麻省的概念通过最小化发动机总体直径的尺度以及相应缩小喷气排放直径来增加涵道比。
We can also introduce the concept of an interest coverage ratio, with monthly income divided by interest expense.
我们还可以引入一个利息保障倍数的概念，用月收入除以利息支出。
The concept of benefits costs ratio and its model are introduced, and the model is simplified.
介绍了效益造价比的概念及其排序模型，并对该模型进行了简化。
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