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1、第一章信号与系统(一)1-1画出下列各信号的波形【式中】为斜升函数。(2)(3)(4)(5)(7)(10)解:各信号波形为(2)(3)fieldisdownwind,broodingHouseseparatefromthebreedingshed,and...Buildingchickenfarmsmustalsoconsidertheconstructionofchickenmanuretreatmentfacilitiessuchasseptictanks,methane-generatingpit,donotletthechickenmanuredirectly.Fivetodoa
2、diseasepreventionandcontrol,donotcutcorners.Builtintothechickeninchickenfarm,willberequiredtodoavarietyofvaccineinjectionsanddisinfectioninchickenfarm,donotholdthechance,anddoscientificfarming.Reasonableproblemsinbuildingachickencoophenhouselayout,canprovideagoodenvironmentforchicken,makingitsful
3、lproductivepotential,sootherthaninunderstandingthephysiologicalcharacteristicsofthechickenitself,andmustbeproperlyplannedandconstructedsheds.Achickenlayoutconsiderations1.Sitestochooseawayfrompopulatedareas,trafficconvenient,awayfromtheroad2.Gaozaoterrain,alotofsunshine.Wintersunaspossible,summer
4、wind,andnotaftertherainwater.Larger,leavingroomfordevelopment3.Abundantwaterresourcespollution-free,easytoaccess,sufficientpowerisguaranteed4.Buildingstructure,theeconomy,savingmoney,andsavingenergy,itisfacinginaccordancewithlocalenvironmentalandphysiologicalcondition,lightingisgood,easytoventila
5、tion,easytooperate,soconducivetocoolinginthesummer,toinsulationinwintercold5.Layoutofpremisesshouldbereasonable,dodistinguishbetween(4)(5)fieldisdownwind,broodingHouseseparatefromthebreedingshed,and...Buildingchickenfarmsmustalsoconsidertheconstructionofchickenmanuretreatmentfacilitiessuchassepti
6、ctanks,methane-generatingpit,donotletthechickenmanuredirectly.Fivetodoadiseasepreventionandcontrol,donotcutcorners.Builtintothechickeninchickenfarm,willberequiredtodoavarietyofvaccineinjectionsanddisinfectioninchickenfarm,donotholdthechance,anddoscientificfarming.Reasonableproblemsinbuildingachic
7、kencoophenhouselayout,canprovideagoodenvironmentforchicken,makingitsfullproductivepotential,sootherthaninunderstandingthephysiologicalcharacteristicsofthechickenitself,andmustbeproperlyplannedandconstructedsheds.Achick