6.3 PԇСNʿ
PԇĿǞˌߵĹM(jn)МyԇһN̜yԇI(y)yԇ;Cyԇ
1̜yԇ(IQyԇ)^(w)Tԇ߿϶֪ڿԇஔ(dng)һ̜yԇ}䌍(w)TԇρfҲһNPԇ(ni)I(y)һ㶼ʹ̜yԇǺܶ˾(jng)ȡ@NyԇǕӋӋ֮ИI(y)
2I(y)yԇ@ͺܳҊؕĹ㌑һƪM(jn)Мyԇ(yng)Ƹܛ̎㌑һγ(yng)Ƹg㷭gһԒI(y)yԇrܜyԇ߹ķðc̓ߣԇйPԇ
3Cyԇ̜yԇ͌I(y)yԇɷҪyʹÌI(y)֪Rһ㳣ҊķǽoһMYϻߔ(sh)(j)ҳڵĆ}ͺĽQ
֮(j)Լđ(yng)ƸλcI(y)֪RҪY(ji)ڹPԇĕrǰrg^ھo