Cách đọc kèo châu Âu籨ڽܲɷʱ´ͷβľһ̨ҿԷdzԵô˵ǿ̨ȫѡƱȡ̨δ淢չ˵ą̇̄塱ʵں̨ľ730ֹԱȫǽҪǽӴοĿǰڵȴһο͵Ĺ4298۰ڴ߿ɫװĹԱѾغ
ùԱš˵ľ϶ԽԽƱ¼ȡ½ѧϰѹϤµ62Ա36ϣ֮(ΪԺԱ)26(Ժ3Ժ23)ϣ֮ǰ״ǰҰδµIJԺԱ᳤С˵۲ơϣھѡԱӮݵѡûţͳڳɤѡƱںȴϣ
ݹҵݱ2018һȹ繫˾ͳйɿ99.9812%ѹϸ99.999%оҵ涨еɿʲ99.90%ѹϸʲ96%ũɿʲ99.70%ѹϸʲ95%ڲǿ豸άȷȫаȫɿʹõõٷ濴һȫΪ6.8%ѹ徭ٵ30ʡ19ʡݵľٸڻ6.8%ƽȥ½ȥһ23ʡݵľٳȫ6.9%ƽٳƽ51ʡίǶżҺʡίίɳίǺ⻪ʡίίʡί鳤лʡίίʡίίŽɵһȺɳ21ߺͳ̶Ǽ·쿴ڼڼ乫ͨ֯ÿͳе黻˵ıרйͨӪ
ڶʮʽڶʮӵǶﺣطԺΪijסĶعǷ˲ΪıȡΪɵλܻӦдӱ߾갶øְͬ齫λʽֲ˺ϻﳴɿΪ̰ϵͬ;ӱΪλڹͬҪְ˽ӪΪѹŲù