-> dB
dBҪôίܺð
rg2014-1-4 20:22:39 dBt(y)Ժ
dB˂fǷdzĿµģܶ˶eēԼ@Щ_ôdBҪôίܺð?dBߺܓԼĽr˂Ҫ˽@Щ@ӌ˂fЎ҂ҪԔĽBһ°dBҪôίܺð?
ڰdBίź?ڰdBίһҪƌWMǧfäĿyͶt(y)taܶĺ°dB߲Đ@ǺܶҌҪ֪ԵĆ}dBҪôίܺð?
ίdBęָίdBڻ߁fPĵĿίЧĺcˡPϵdBЧĿcxt(y)ԺԼίPί^ѭίԭtҲкܴP(lin)dBҪôίܺð?
1)ίdBxҎ(gu)İdBίt(y)Ժ
xҎ(gu)t(y)ԺίdBǺPIֻҎ(gu)t(y)Ժſܞ黼ṩίlt(y)߀t(y)OֻҎ(gu)t(y)ԺŸб@ӌdBίܸЧǧfŽ^t(y)VЩǴίdBĻ_˵İё͛]аտƌWίdB
2)ίdBҪкܺõďԡ
ڰdBί^Щ˕xyaoί@ЩߑԳֲgҎ(gu)ɷyaoԱCyaoһֱ̎ЧԾS֯ЧdBҪôίܺð?Ҏ(gu)tyaoDzܿưl(f)ҪԭڷyaogҪȥt(y)ͲѪyaoѪҎ(gu)ιܵʹt(y)˽ⲡMչ{yao
3)ίdBҪ֮Ժ㡣
dBBίһL^߱t(y)֮Ժһڰl(f)ȫ25ٸ(j)wl(f)X늈DcCϿ]ǷֹͣίвSYίt°dBl(f)ߕl(f)dBm(x)B(ti)
4)ίdBҲעʳԼ{ء
dBTl(f)ͬӰʳԼwʳõB(ti)ҲodBί°빦ЧLҪl(f)F(xin)ίcħ(zhn)ěQeOt(y)ίK(zhn)ٲħȡÄ
ͨ^ԔĽB֮҂ґԓ֪dBҪôίܺðdBߺܓԼ˕_ģdB@ӵļкܶăҪ˽ڰdB˂һҪJ˽ڰdBκΆ}ֱԃ҂ČҕoMĻشġ
аdBĆ}ՈԃھҞ