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1、蘭州職業(yè)技術(shù)學(xué)院《影視特效AE》教學(xué)大綱系（中心）教研室適用專業(yè)：大綱制（修）訂負責(zé)人：教學(xué)主任審核：（加蓋單位公章，宋體，小三號，加黑，居中）蘭州職業(yè)技術(shù)學(xué)院20年月（宋體，小三號，加黑，居中）air,keephouseairfresh,cooling,moisture,reducethebodytemperatureofthechicken,whichisameasureofthechickenhousethefirstelementoftheenvironment.(1)theparameters:ventilationinsummerpeakdemandcalculations,
2、4~5cubicmetresperkilogramofbodyweightperhour,harmfulgasconcentrationdoesnotexceed20ppmammonia,hydrogensulfide,l0ppm,co0.15%.(2)ventilationnaturalventilationandmechanical...5.thermalinsulationroofcoldseasonistheregionofgreatestheatloss,arealsohottowelsunlightthananyotherregion,sotheroofinsulationi
3、sthemostimportantregion,followedbythewalls,ifopenshedstomakedoorsandWindowsswitchesfreely,andsealwell.Onmostofthewallsandroofinsulationmustbetakenorequivalentdevices,thermalinsulationmaterialsrequirehigherthermalresistance,goodthermalinsulationproperties,andthickentheNorthwallmustalsobetakenofthi
4、cknessandmeasuressuchasroofandceilingcanopy.Inplaceswithmorerain,duetheeavesofroofsonbothsidesextendingoutward.Pheasants(pheasants)farmbuilding(a)sitechoosepheasantfieldsshouldbeselectedgaozaoterrain,sandtexture,welldrained,slightlytotheSouthofterrain.Mountainareasshouldbeselectedunderthesunny,sp
5、acious,ventilation,sunshine,wherethedrainageisgood.Pheasantfarmsshouldbebuiltinaquiet,safeplace,awayfromresidentialareas,factories,themaintrafficartery,buttakingintoaccountfeed,transportationproblems.Acleanwatersource,waterisnotcontaminated.Tohaveareliablepowersupply,notonlytomaintainnormallighti
6、ng,air,keephouseairfresh,cooling,moisture,reducethebodytemperatureofthechicken,whichisameasureofthechickenhousethefirstelementoftheenvironment.(1)theparameters:ventilationinsummerpeakdemandcalculations,4~5cubicmetresperkilogramofbodyweightperhour,harmfulgasconcentrationdoesnotexceed20ppmammonia,h
7、ydrogensulfide,l0ppm,co0.15%.(2)ventilationnaturalventilationandmechanical...5.thermalinsulationroofcoldseasonistheregionofgreatestheatloss,arealsohottowelsunlightthananyotherregion,sotheroofinsulationisthemostimportan
