Kèo nhà cáiкηԸŹйԶһ£æЦڣ¾һĨ֮ɫͷã֮ԣһΣҪȡĪ
ϲIJ£ʱʱͷ쾭һսڿͷʱ¾ȸ±ܡȥֹͻĽݫذϼ۾һսսʱָʱɾ͡Ǿ㣬10Wɾ͵100W츳˺սʱսսʿ20%һdzɳһΣͬʱһ棬ɽκһ£ýʣһһǣ~Ľݫ̵һͱսڿ±ܵIJҽУ̽ţذϼ۽һն£±ܵͷذϼۺĽݫԣͬʱǰһֵԸľһͬ
ڴʱֵ˵ҪһǹѹֵϢһѶеıҪܡ
˺ǹмܣȴʽһָæ֣һǹˣǹ˦ȥȴʻӵһǹˣǹ淴̻ȥ㽫˵ʺͱƸDZһƤۼʴ֧ʮϣУѾʴıɢ֪ȥһǹߡãһʱϣ˲Ҫƭǡ˵˲֮ͨΪ壬ۣʱʧ֮ߴԵĹ۵㣬ĻIJ͵ϣԭĻǺӣûͬȱӱӱЩǧ괫Ѿγһϵ߶ȹɸѧ˵̵