探讨了无功降损节电的效益分析方法并推导出公式，实践证明对电网进行无功补偿降损节电切实可行，效益显。

The benefit analysis on reducing loss and saving electricity by reactive compensation is discussed, with its concerning formula derived.

youdao

这篇文章提出了公法线长度并推导出超前角的计算公式。

In this paper base tangent length is put forward and lead angle calculating formula is deduced.

youdao

他将风力公式应用到他的模型中，并假定树枝受到风力作用而断裂的概率是恒定不变的，据此他推导出了达·芬奇公式。

When he plugged that wind-force equation into his model and assumed that the probability of a branch breaking due to wind stress is constant, he came up with Leonardo's rule.

youdao

So I just want to use that again and again, starting from that, for various different sorts of conditions andderive the criterion for equilibrium in each set of conditions.

所以我将会一遍又一遍地使用这个公式，从这个公式出发，在各种条件了,推导出,任意条件下的平衡条件。

麻省理工公开课 - 热力学与动力学课程节选