1·This paper therefore proposes a weak bus discriminant, which uses the active power proximity to described the ability of withstanding the load power variation.
研究了电距离、功率因数对临界状态的影响，提出用有功功率裕度反映节点承受负荷功率变化能力的弱节点判别式。
2·Based on the Poisson bracket and the discriminant of integral of motion, we prove the problem that the moment of momentum is the integral of motion when the mass point is affected by central force.
运用泊松括号，依据运动积分判别式，证明了质点受有心力作用时，其动量矩是运动积分的问题。
3·A multistage strength forecast of the Northern Huanghai Sea Cold Water Mass is taken as an example. The whole process of sifting factors and establishing discriminant is given.
将北黄海冷水团强度预报作为示例，给出了筛选因子及建立判别式的全过程。