243Ϣÿҳʾ10Ϣ25ҳʱ0Сʱ00359
Դ.ڵԽ(,Һ),ԲʽֵԲ.һƵʷΧڵ˶Ͳĸо.ǿһֻƵ. һ,һص.ѧ۵,ָǿƵʵı仯ɾµ;ӹDzҪ,,һְߵھӵһԴ. ǻе.Ȼ,ҪƵʲһҪƵǺ,ǿе͵˶Ƶ,Щôصֵ,ǡֿܲ˵,Ϊ䵽ΪƵʷ......
ѹӹҪԴھ. Դǽĸʩ, ͻеǼһҪֶ, ҪƻĻĹͲij̶. , ȡ˷ǼΣЧ, õĴʩ֮һ. ĸ˷, ҪǶ, ͷķ. þҪж, ֺͷñ. õĶ, , ϶. ......
Źҵ̶ȵIJ,Ⱦ.ʱ֯ȾΪȾλ.ȾˮȾΪִ.Ե¿ɽ˵,ڷյĿռҵ,Ⱦ,Ӱ˹ԱĽ.Ϊ,ܻķر,Ⱥƶ.ڵ̥ʽɿǵ²ɿҪ,ҲҪԴ,˼ǿ̥ʽɿ,ȫ߲Ʒ,ǿƷڹгľ,Ľ,ѳΪ̥ʽɿ,ʹҵҪʮҪе. 21ͺ,Ϊʵֿɳչ,......
ͭӹҪԴΪ:,ϳ,,,,ܻ,ֱ,ķ,ѹ,ֵΪ78~102dB(A),50-4. 50-4 ͭӹҪԴֵ ......
ԭ,ɸֹ̺Ϳʯװж,ͻڼѡ豸ת.,ɸֲϴ,һֵ90dB(A);ʯװж,ͺѡ豸תԽС.ڳ豸ΧеӰԽС;¶豸ΧеӰԽϴ.......
.һƵʵĿ˶ĤĸоΪ.Դǹ, Һ.һ, ͨн̸, ˼, Ϳչֻ., еҲΣᷳ.ĻͱըΣ˶; ھӵʹ˯˾ᷳ.ΪҪ.ָڹҵ, ʩ, ͨ, Χ, .ȾָĻҹ涨Ļŷű, , ѧϰ. ԴɷΪ:1,......
һ, һ, ҪԴ(, Һ, ).ӻĽǶ, ȷһDz, ֻ, Ҫ˵״̬, Ǹ, ѧϰϢͳΪ.ȾָĻҹ涨Ļŷű, , ѧϰ, . , ΣҪ¼: 1. Σֱӵ.˳, е, , , ٵ½, һ˵, ʱ䲢, ......
ԴԴ. Դжֶ, ԴҪ. (1) ŵ ɸַŵΪŵ. ڷŵ, ŵΧӵƵƵĵŲ, ҴľԶ. ǶԵDZӰΪصһ. ڷŵ, ڳŵеηŵ, Թŵͻŵ; ڹлŵ. 1 ηŵ. ηŵмЪ, , ŵηŵָ̻Ƶ. ҪԸѹ, ˥Դƽɷ. , һװ˵, ηŵӰ첻. 2 ŵ. ŵܷŵڻԹŵŵ. ڽӫ, ڰ, ʼֹʱŵ仯ϴ, Իٵ. Ŀǰʹõӫƺ......
ͨ, Ŀ˲Ӧû֮, оҪ.˲Ų, ĵ̽, ڲĻװõ, ̽ȿɽƵʽȷ Ϊ̽, ߷ʹž֮, СɷֱźŵƽҲҪ;. Ȼ, ߸Ϊʵ., ϵͳʱ, ƵԽСɷֱźŵƽ൱Ŭ. , ˲ϵͳ, Ҫⲿĵ, ҪȻųĻʩ(³).Щ......
ϼϸ, ֻ۵֮߱߳Ĺϵ.ڵΧһ縲DzϺ, Ż߱߳, ΧӦҪȿӦ, ʹýϳĻ߹пܵȵĽ(ָΧӦĵ), ˲ٰΧı߳ѡԭ, ӦܼС߳ԼΧҵ, ͻӦ쳣; ڵ縲DzϺ(100 m)ĵ, ѡL/h0.5~0.8, ʱ뿿͵ӹ۲ĵӴ߹۲⾫, Ա֤źŵ"ʱ䴰"Χ(ͼ8-27)۲ֵĿɿ.ͼ8-33Ϊӱй4߲ͬ......