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ID：48762911
大小：642.50 KB
页数：12页
时间：2020-01-22
《英语版噪音污染.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、noisepollutionhouseorpublicplaceforthenoiseproblem:homeorpublicplacesincludingnoise,homeTV,airconditionersandotherpublicplaces;andradio,hawkersorloudspeakernoise.housingnoisepollutionConstructionnoiseismainlycomposedof:crusher,dumptruck,percussivepilingmachine.constructionnoiseproblemsVeh
2、iclenoiseare:Acaralarmsystem.Bcarsontheroadbyacar,carsound.C.acarhorn.vehiclenoisepollution(1)thesourceofnoisereductionForexample,themotorcyclemuffler(2)inthetransmissionprocessofreducingnoiseForexample,wallinsulation,soundinsulationdoor,soundproofglass(3)inthereceivingareatoreducenoiseAs
3、theplanestaffwearingsoundproofheadphonesnoisepollutioncontrolthinks
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