Tỷ lệ kèo nhà cái½ѷͷû£Ҳҡҡͷʹ˵ļƻDz̫ˣڹ֮ڲ˽٣Ȣ˲̷ˣһ棬̼Щ̼ҵΪ˽һ棬ҲΪ˰£ЩŲҵ̨ҡڲСңЩļ룬ھĵλܹĵõȹ̣ͬʱҲ֮ܽǰɵĸӰ콵͡
ԣӦһѸ֮ǰսʿ˫ֱֻۣӲ˵ֱۣ˵İڿնԾ˶ڲŶܲ۾DZսΣŷɶ褴˿Ѿ˼־֮飬˲ŽкӣԼһ£ȴһ;ƿݵ褱Ƶ̶ֳȣȥμˣ
Ҳ˺ЩȵĿ½ѷ½ѷǴǰصʹ֮ⷥܲӣ͵ĶһеȻôңȴdz죬ǿŮа£ϸ˵ǧҲΪȴң⣬ֹˣҵIJӵܻ嶼ڷ֮£ŷ
ӵŭһŶԷͣЪ˲䣬ȵDZ߶ǽ֮ϣһе֮Ѹ֮һ߷ż̾ԲֹʮȻǵȴֲޱȣĺԨоʯЩǰҲֻбŰķݶ߾̫Сߣɫ࣬ժ¹뽫ͽһ