总角动量M的三个分量Mx,M,M等于 Mx=yp:-py M=zpx-xp- (5.2) M:=xpy-ypx M2=M?+M3+M (5.3)总角动量M的三个分量Mx , My , Mz等于 x z y M = yp − zp y x z M = zp − x p z y x M = x p − yp 2 2 2 2 M = Mx + M y + Mz (5.2) (5.3)