A method for calculating circulationefficiency of ideal gas is provided, and it is used for ellipse circulation.
给出了一种计算理想气体循环效率的方法，并对椭圆循环效率做了具体计算。
2
The words that have mattered are efficiency, flexibility, shareholder value, business-friendly, wealth generation, sales, impact and, in newspapers, circulation.
关键词是效率、灵活性、股东价值、商业友好、创造财富、销售、影响力，以及报纸的发行量。
3
A scientific and rational vehicle scheduling method will not only reduce the cost, but also increase the circulation speed, improve the operation efficiency and raise the service level.