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1、都江堰导游词3篇 thedujiangyandam,45kmnorthofchengdu,isanancienttechnologicalwonderofthecountry.morethanXXyersago,libing(250-200bc),asalocalgovernoroftheshustate,designedthiswatercontrolandirrigationdamandorganizedthousandsoflocalpeopletopletetheprojecttocheckthemingjiangriver.formanyy
2、earstheriver,floodedthechengduagriculturalareaandlocalfarmerssufferedalotfromthewaterdisaster.duetothesuccessoftheproject,thedamautomaticallydivertsthemingjiangriverandchannelsitintoirrigationcanals.formanyyearsthedamhascontinuedtomakethemostofthewaterconservancyworks. expansio
3、nhasbeenundertakensince1949andatpresentthesystemdoesagoodjobofirrigatingfarminglandacross33countiesofthewesternpartofsichuanprovince.localpeoplefeelproudofthesystembecaudeithassupportedalargeamountofpeopleintheirdailylife. whatmakesthissystemsogood? thesystemisalargehydraulicw
4、aterprojectwhichconsistsofthreemainparts:thefishmouthwater-dividingdam,theflyingsandfence,andthebottle-neckchannel. thefishmouthfunctionstodividetheflowofwaterintoaninnerriverandanouterriver.longago,whenlibingworkedasthelocalgovernoroftheshustate,hefoundtheoldrivercanalwastoona
5、rrowtoholdmuchwater,whichoftenoverflowedthebanksandcauseddisastrousflood.basedonnaturalgeographicconditions,heorganizedthepeopletobuildaman-madedam.thewholedamlookslikeafish,andthefrontdamhasacircularconeshapedlikeafishmouth.itisthedamthatchannelswaterintoanoutercanalandaninnerc
6、anal.theouterwatercanalfunctionsasthemainstreamandholdssixtypercentofwaterintheriver.theextrawatergoesthroughtheinnercanalforirrigationinchengduareas. theflyingsandfencejoinstheinnerandoutercanals.thefencefunctionstocontrolltheflowofwateranddischargeexcessintotheinnercanalfromt
7、hemainstream.during都江堰导游词3篇 thedujiangyandam,45kmnorthofchengdu,isanancienttechnologicalwonderofthecountry.morethanXXyersago,libing(250-200bc),asalocalgovernoroftheshustate,designedthiswatercontrolandirrigationdamandorganizedthousandsoflocalpeopletopletetheprojecttochecktheming
8、jiangriver.formanyyearstheriver,floodedthecheng
