˴ ע(c)Y
r(sh)g ע(c)c(din)
ҪЈ(chng) M(jn)~0
~0 ˔(sh)
kc(din) ?yn)I ^(q)_l(f)^(q)f· (jng)I(yng)e0
wϵJ(rn)C I(yng)I(y)(zh)̖(ho)a
˴ ע(c)Y
r(sh)g ע(c)c(din)
ҪЈ(chng) M(jn)~0
~0 ˔(sh)
kc(din) ?yn)I ^(q)_l(f)^(q)f· (jng)I(yng)e0
wϵJ(rn)C I(yng)I(y)(zh)̖(ho)a