ɽ֧нṹ һִɽ֧нṹɸ֧еԪ϶ɣÿ֧еԪɽ֧壬֧˷ֱɽϵĿɽо棬оΪɸϸһɽΪܽ˿ڴо档ʵ֧УԺãʹʣڸ֧еԪԶάʹ㣬Ժáڸִӵ֧С һõԵɽ ɽڵһ(10),һָĽӺϵ(50),һԼ(25,60,70)ΧƸɽƬ(21,40,61,71)֮Եֽ,ͬʱƬ(20,62,72)һԵֻƬ(40a)۵,˵Լ֮ͬƬֻغ.ԼӵƬ,ȻԻڽӺϵ֮Ƭγ(51). Һ¶λɽĵϵͳ 漰һҺ¶ɽжλĵϵͳͷõϵͳһ֧вɽҺķڶ롣ڡӷҺοȫٲֵɽϡ عؼ:֯,ȼɽ