Cách đọc kèo châu ÂuԣĽݫ˿̷ŷЩԣľǰԼȴɱһʱĻеĶͻȻͣüô£ԣɫ䣬ū˼Ҳֻǧˣôʱ˶Կһʱ롣
ã˴˿ڷӦһӶǹżأһߴűȥֻһĹѾвмأҲ˲ЩĽʿȥ֮ԺʧȥϢӦѾԬܡҡͷʿһ̣ȷʵʵѧҪǣգ㲻ҲܷʱΪԼ֮ɵط
ʮ ûʲô£һū˽Īϲռˣȥȸ˵ֹˣA߸ɵݣDZǸˣdzŲ˶ˡԣЦӵ£һūռأԬܵˣ̫ɽԶⲢݣǵˡ
ֻǡͷЩԥذϼҲҵIJ£ǿ˵͡ϲIJ£ʱʱͷ쾭һսڿͷʱ¾ȸ±ܡȥֹͻĽݫذϼ۾һսսʱָʱɾ͡Ǿ㣬10Wɾ͵100W츳˺սʱսսʿ20%һdzɳһΣͬʱһ棬ɽκһ£ýʣһһǣ