奇异非奇异粒子比率
ration of strange hadron to unstrange hadron
非奇异性自乘不变矩阵
Nonsingular Idempotent matrix
Hammerstain型非线性奇异积分方程
Hammerstain nonlinear singular integral equation
多性状非求导约束最大似然法
multiple traits derivative free restricted maximum
二阶奇异非线性微分方程
singular second order nonlinear differential equat
非奇性扰动
non-symmetric perturbation