The essence of this method is a group of differential equations based on the average change rate of orbit elements, and the right sides of these equations contain definite integrals.

它的实质是以轨道要素的平均变化率为基础的微分方程，而方程的右端包含定积分。

youdao

Statistic data shows that the porosity increased a little with 0.58% of the average change rate after long-term water flooding in every-type of oil-bearing reservoirs in Lamadian oilfield.

统计资料表明，喇嘛甸油田各类油层，长期注水冲刷后，孔隙度值略有增加，但变化率不大，平均只有0.58%。

youdao

A method based on the change rate of average queue length to enhance RED is proposed.

提出了一个基于平均队列长度改变速率RED的增强算法。

youdao

The average rate of change over the 150-year period was 8.7 days later for freeze dates, and 9.8 days earlier for break-ups.

BBC: Ice records reveal warming trend

The numbers, measured by data outfit 7Digital, reflected the change in the rate of downloads in the 24 hours surrounding the Grammys as compared with the average of each of the seven previous days.

FORBES: Grammy Aftermath: Mumford & Sons See Sales Spike, But Bruno Mars Is Top Social Gainer