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Tỷ kèo nhà cái 5Ȼ˵ͷʮغǰһֱڳһɽ֮䣬Ϊ࣬Ȼط֣ɽ֮䣬ҲؿԸʤع麺յغҲ߳ɽӵԼأغ˵ĺ£ܾذϼ֮ǰ±ܽã˿̿±֮ǰĽȻҲɢ˿ɱ˿Ľݫҵսһʱ±ܵıȻ£Ͼ٣Ͽ±һȺ֮£˷ֳΣ˿ʼͶ£᷼ؾսƣǰ磬Aǣ֮ʱ߹սƣҪǣǸˡ
ӵºܺ¼֮ҲУū˵ͷżأ֧һǰһһֱɱūӪǰ¼Ӫկеļźż˳˼ΣԷҼˣס棬ס˴ӪʧܺãľһĶԷļҪūҪиǣЩĪϲŮ˷ȥָʿǣǸС̣ҷģֻҪľ滹ԭһ죬һŴҹϸõӡƹǽҪ³ǣȴڳǽϣ˫ĿףԸոտһ죬ȴݵĵɹ˵Ҿ㣡
һAСˣձӪյս֮дޣۼֻܴű˱ʮկһ㱨ͬʱɳܼķϲIJ£ʱʱͷ쾭һսڿͷʱ¾ȸ±ܡȥֹͻĽݫذϼ۾һսսʱָʱɾ͡Ǿ㣬10Wɾ͵100W츳˺սʱսսʿ20%һdzɳһΣͬʱһ棬ɽκһ£ýʣһһǣ䣬Ŀһɣһ
ƿһЩʱͷųأʱҪֻϧֵ̫խĵطɱܡȻȻҲϴ֮ķŭƫƫֳ侲ɱ;ǰŵˣڹʱѾȻ˻عİ·⡭ҡͷľҲ֪ݽ֮еһЩ˵±ܵȷ뿪ͥĵ죬űϣ˵±ܶͥһһָơ