Tỷ lệ kèo nhà cái³ܹӦһȥʮ ļԭļ䵽ѾȫںˣȻ֪갰Ե갰IJʵͱаʰԬԭһ갰Ҳһȴ갰Ժݺݵشͷ˻
һӣȴۣǽҲˣڸܲ١ЩսʱսҲͰˣССټãҲɱˣ³嶷̻̽רƵУһֱЧжңЩǼ˵ӿ룬ЩӿǼ˿ɲ嶷һףϰնǼ˵ų⣬ʹʱ³ЩŪýͷöԽУξ£Ҫ³ǹɣΪһʿȡһӸŲ
ĻŽУɫĺԨԥһ£ǿկӱǸʵΪ֮ƣϣܹоӪկҰսоۼߡ֪٣ӭӣֱӱ˿ˣнʿȻв٣˿Ļսֱӹ뽵ҲмƲĿʼѣκסţѸռǽͬʱͳźšȻӪúãΪǨʹܹЧߣô㣬¾÷ԣҲһ㣬ϣһȫķ⣬ֵ֧ͬʱȵĽȨԼС
ʮ꣡ˣʮ꣬ʮ֮ڣҪ°ղս̫֮࣬ˣλңϾոԼɱŲܲ¾ͷ˴ģĴɱжҪ˵ûκιϵ˭ŵģʿַٴӿεָʼµţΪЩΪŰû뵽ˣ︮У鱨˼ڼҡͷЦʱ