ømȻǽQͨ^(dng)ֶ,Ч^@,(sh)`Cڵ·^(yn)صĵ^(q)bõĸ,҃(ni)Խ30dB
һx
1пղ
пղղߵĸһӣпղÃƬƬʹøߏ(qing)ȸߚԏ(f)ճY(ji)Ƭc(ni)XϽճY(ji)ƳɵĸЧܸᲣпղnj(zhun)I(y)ĸmȻ(du)f(shu)ԒЧ(du)ͨеlǛ](mi)Чпղܲ˲пղЧdzޡ
2ղܼȱc(din)
ղnjƬƽ岣](li)g϶ղܷŚƬ֮gg϶01-02mmղăƬһһƬǵݗ䲣@Ӿ͌ͨ^(gu)ղĂ(do)(du)ݗ䷽ʽɢʧğή͡
ԭρ(li)ղDze(cu)ղȱc(din)һmȻ܉ֹǸ(j)AW(xu)팍(sh)(yn)ҵęzy(c)@ʾղ˱CՌӣڲ֮gۿҊ(jin)Ĺw֧γɹwЧ](mi)@ղ?yn)w(hu)B©BԼۼڲwڜض(yng)ɏIJӽU(ku)ɢM(jn)ՌӃ(ni)M(jn)ӰղʹÉ
3Azܼ(yu)c(din)
Azĸķ|(zh)ܶȣܶcȳ˷eQwĴ˽^(gu)AzĶ֪AzһǃɌӲzƬMȲܶȴAzܶȴ
AzܵǺЧ(yng)c(dng)ƵĿڣǺЧ(yng)lʲҪlηAzǺЧ(yng)F(xin)3000Hzh(yun)xеlĽͨĿǰķæͨɵõĸ
AzgzƬஔ(dng)һƬЧֹ(dng)Ķ߲ĸ֪ͨ^(gu)ײʹa(chn)(dng)ĶΌӲпղղAz(hu)ײa(chn)(dng)(dng)ta(chn)AzzƬЧͲ(dng)
AzĤĜpԽãAzwܾԽã1~3ؐeᘌ(du)еlĸܡoҸõĶŰzƬǾϩsȩ(sh)֬(jng)܄ܻD͵һN߷ӲNJAzõzƬõĸIɹͰȫܣܷdz
AzܺãʹÉL(zhng)ղAzx
Ͳĵx
NһNXϽһNһNǔXx^(gu)Уܶ͑(h)ɻxķNЧ҂ÏĎׂ(g)(li)Д:
1Ͳ^(gu)̶ԣ
xõXϽͲIJõă(yu)|(zh)ߏ(qing)ȹI(y)XͲͬͨXϽͲģ(zhun)T(mn)ǶƵĸһXϽ?q)ڶͨõ_ܷ͔X\(yn)ԭ(li)ͲֱиӹȻM(jn)нMbc֮g㕽ܷ;Ͳô
2ͲĵҪ;(li)v
ƵXϽԺãӲȸڸL(fng)m^máͲԼXͲҪڸصЧ^@ҪքeԼXͲĵԭ(li)v^PVC(sh)֬Ҫԭϣһķ(wn)ɫ䄩⾀Մȣ(jng)DͲͲĶǻY(ji)(gu)O(sh)Ӌ(j)_(d)˸Ч
XnjXϽg_(ki)Ӳ܌_(ki)XϽBһw҂֪ό(do)@ҪȽ@ӟͲͨ^(gu)(g)ϵĸҲ׃XĸҲe(cu)
3IJ|(zh)ܶȶ
ͲܶȶԣXϽܶǔXܶțQģܶȶXϽĸǔX
4ʹÉԣ
XϽܶȸߣӲȸ׃(qing)Ûϵ(sh)ϻꔵ(sh)ʹÉL(zhng)ǔX̵ͲϷ^(q)ٵС^(q)ʹ䓴6(hu)F(xin)ƽ_(ki)Ʉ(dng)(do)µğo(w)P(gun)]Ó ݆o(w)_(ki)P(gun)ϵĻW(xu)ܲ(wn)(yng)⾀ͲğÛsa(chn)p϶ұ氵l(f)S
5ĭh(hun)Ƕȶԣ
XͲa(chn)^(gu)̌(du)h(hun)Ⱦ(yn)(gu)(ni)ᳫ(ji)ܭh(hun)ȾԴa(chn)Y|(zh)S^Ͳ^|(zh)ͲʹU}(wn)ƷU0612֮gUһN(du)wк|(zh)(dng)|(zh)Ͳϻr(sh)(hu)UۉmL(zhng)ڽ|(hu)ʹѪҺU(bio)Uж
傀(g)^xXϽXm
x
mȻ(du)ĸЧӰ푲Ǻܴ,nj(du)ĉa(chn)ӰˣõҲǺÉĵĘ(bio)(zhn)z(yn)ҪĎׂ(g):
1
|(zh)?j)?yu)|(zh)⻬ȥ](mi)ʲôɫКסƽĬF(xin)tf(shu)|(zh)ã
2ǷY(ji)(sh)
ܶ^ߣC(j)(chng)Ƿdzص҂xõ횳ܸƽ_(ki)͵ĸ|(zh)ҪҪ]_(ti)L(fng)صӰ
3ДĉL(zhng)̣
ʹ5-10|(zh)ÉֱӰ푸ĉ
ܷϵx
1(gu)T(mn)õܷϣ
Ŀǰ(gu)õܷzl|(zh)ҪжzԪұz۰w(Pzϻ܃(yu)Ԫұzʹ^_(d)60
2(gu)(ni)T(mn)õܷϣ
(li)(gu)(ni)T(mn)ܷϵЈ(chng)ܾϩ|(zh)ܷlռ_(d)90ИI(y)P(gun)T(mn)]ʹõĸԸ߾ۺ϶ȾϩԏwܷlЈ(chng)ռʘO
3xõܷϣ
xõܷԪұzԪұz҇(gu)60ɱW(xu)I(y)оԺƳ(li)T(mn)ϑ(yng)ú_(ki)l(f)H90ڲűճ2000C(j)е˾zƷS_(ki)l(f)(li)ͬѮͨ^(gu)˽O(sh)P(gun)(zhun)ҵ(yn)Ŀǰ̎a(chn)AHЇ(gu)(ni)һЩߙnT(mn)a(chn)Sʹá
_(ki)ʽx
_(ki)ʽЎN̶ʽϑʽƽ_(ki)ʽʽҊ(jin)ƽ_(ki)ʽʽɷNxƽ_(ki)ʽ߀ʽܷ҂ׂ(g)Ƕȷ
1y(tng)Ĵ(h)ƽ_(ki)ܷҪͬ
֪ͨT(mn)ƽ_(ki)ЧҪ?yn)ͨ?h)ƽ_(ki)ʽP(gun)Ϻ^ܺͨ(h)û݆ʽ(hu)݆܉̎BNڵIJc(h)֮gܷԲãy(tng)ƽ_(ki)ʽ(h)ܷԱʽ(h)Щ
ͬͨ(h)ܣһɲϛQһքtɸwܷԛQc֮gܷ֮̎gܷ̎c֮gܷ̎dzxÃ(yu)|(zh)ܷϣĸĸЧdze(cu)
2ʽƽ_(ki)ʽ(ji)ʡge
Ŀǰڳ]ӹ(ji)ʡgʽ?yn)ֻռ҃?ni)ge^ֲM(fi)gƽ_(ki)ʽǼbԒһx(ni)ƽ_(ki)@Ӽռ҃(ni)Ŀge֮a(chn)ȫǼСĸҪעMҪxƽ_(ki)ʽ
3ƽ_(ki)ʽb(dng)ľʽtã
ƽ_(ki)ʽõď(f)ϸ?yn)dzͨĴ_(ti)λòb@ҪҪԭ(li)Ĵ(h)ԭ(li)Ĵ(h)Ѓɴ[һI(y)oo_(ki)l(f)̽ӕr(sh)ǽy(tng)һ^ģ@һ϶Ӱw^ԭ_(ki)l(f)̰bĕr(sh)һ(hu)ˮ̎bĸİbˆTǷ߂ˮg(sh)Ƿ(hu)ˮ̎ˮ̎(dng)(hu)(do)´(h)BˮʽԭA(ch)ϼbһ(du)ԭ(hu)Ɖֻ4cmλü
4ƽ_(ki)ʽںܴȫ[
ƽ_(ki)ʽҪȵһ(c)bq朁(li)M(jn)й̶_(ki)ƽ_(ki)(h)Ҫռ?j)һKgδL(fng)r(sh)ܓp(du)Ҫdzƽ_(ki)ʽҪ֔(jn)?yn)أƽ_(ki)ʽҪe_(ti)L(fng)(jng)Ϸкͽ(jng)δL(fng)ıжxļ(j)eʹÓʽõһXϽb҃(ni)λã^ȫ
5(yng)]ҾƷһʹã
҂(h)һ㶼(hu)bзIʹxøĕr(sh)ҲҪ]@ЩĿǰĸ](mi)в÷IһwĴ(h)Ҫļͥ߀ҪbIͼ
(ni)ƽ_(ki)ĸҪѷIW(wng) b棬ʹ(li)dz҃(ni)ҪbԒϲλʽͲͬĿgb(h)ֻҪA(y)ĿgͿԣӰ푴İbʹ
_(ki)ʽԣʽƽ_(ki)ʽ(ji)ʡgȫ҂?c)xr(sh)ҪĹ̶˼Sģʽl(f)(yng)ԓ^ԇ (tng)Чe(yu)ȱc(din)Q