ڣ ҲҪᳫ ǿɽ ģʱЩлǿ Ի õϢȻС Ⲣ ζЩ ݾ õġôɼ ݺ ͽͽҪ ر ϸϣЩ ף ҪС ʱȻ

12.04ʵȫģģ 12.02ϸСı Chao Բ Ӱ 11.12 Թ иͷ 11.10 20dBFRF Ӱ 'ģ ע 11.08ο οģ ʶ źŴ 11.06MIMOSISOģ IJ 11.04Ϊʲô'һ ģ Juan Ҫ "ź" colgate toothpaste ɣ
һdz Ծ ġҼǵùȥ 1 dBһdzϸ ʵ ϣἤ ȤƵ ģ DZ ڵش'وٴ ȼƹ ص ĿԣõIJDzġ
Ϊ һ 㣬 ôһ ƽ ԡβ ԣһ'Ӳͷ ڸ ȤƵ10dB һ' ? ͷ 30 ~ 35 dB ǰ һƵн10dB м һƵн15dB ʣ λ һƵ ڡ Ӳ ? ͷͼ1'
DZ Լ Ϊʲôǽģ ԡʱ Ե ĿΪһЩ ض ӦûøIJʱ Ե ĿΪ ýṹһ ε ʱ ͲҪһЩ ض Ӧ IJˡ һ ΣΪ ĿľϣDzΪĿ ľģʱһЩľĻ"ϡ
970.6 Hz
495.1 Hz
0.002
ڣ ҲҪᳫ ǿɽ ģʱЩлǿ Ի õϢȻС Ⲣ ζЩ ݾ õġôɼ ݺ ͽͽҪ ر ϸϣЩ ף ҪС ʱȻ'һЩ Χ Ϣ