Laurent series
劳伦特级数
Laurent级数
罗兰级数
罗朗级数
罗郎级数
罗朗展开式
A special class of power series
generalized power series
nine parameter power series constitutive model
power series of shifting operator
theory of power restricting power
a ring of Laurent polynomials
Three New rural power development strategy
( m th) power proportion
“Anhui-to-east power transfer”project
0V adjustable regulated power supply
1 000 kV AC power transmission line
1 000 kV power transmission
1 000 kV ultra high voltage(UHV) power transmission