Kèo nhà cái½ѷ۵ͷ꣬ͽ֮һңսŷɡҲ⣬һһͽӣȴһĨмǵ͵çΪһʱѾ۵ֽŷͷȴʮ㣬ҲǶͷһ۶ӣԴȥĸţû뵽ˣ︮У鱨˼ڼҡͷЦʱ
½ѷĿ⸴ӵĿıӰ̾һҡͷȥ˵IJҪͶҾô죿½ҵ˻ͬ𣬾ͬˣҪ뿪ᴩݣôģ밡٣еŲ裾ȻӣŷһĨ죬漴㱻˷ȡһֹ֣ס½ʿס֣Խͼܲ٣ü
ЦһҪǿֱȴذڵϣֺܶ˳һŭҪεȴסһӹڳ«ǰϸĴ˳«Σҡҡͷ«һЩҵĻˣط꣬Ҫ˵Щĵ£褹ҲǰûڲԡƳֵнȻף¾ܲڱǣƣƽȴܴһöݳΪĽ֮أ˭ʤ˭գֵгͷ֮գʱҲֻſˣģǽغá̾˿
һҵĴϴһֱ²ŽƽˣҹӪҪԭ֮ؽ鱨˪Ϊ̫ԶȻҲ鱨վδͶ̫ྫҹӥͳûзΪʵ˶̫ǫˣˣ̫ԼòɫһƽֻǵһҴ˴оݲ㣬Ҳֻǧ콫սƵ֣£ܸ³̫෴Ӧᣬʱһã³ػٻظرغУЪϢһұ֣³˲ֻۣһ֮飬䲻ս