变化需求

扇区位置

$T\uparrow \left|\psi \right|\uparrow$

$T\uparrow \left|\psi \right|\downarrow$

$T\downarrow \left|\psi \right|\uparrow$

$T\downarrow \left|\psi \right|\downarrow$

N = k

$V_k$

$V_{k+4}$

$V_{k-2}$

$V_{k-6}$