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1、黑龙江工程学院本科生毕业设计附录SeederhistoryandintroductionhefirstcenturyB.C.,Chinahasgood,thisistopromotetheuseoftheworld'searliestdrillmachine,todayisstillinthenorthofequalapplications.1636inGreecefirstTaiwanmachinemade.In1830,russiansinlivestockHuaLimoreonLiBomachinemade.1860yearslater,thecountr
2、iessuchasBritainandstartedmassproductionworkgrainsuitabledrill.Afterthe20thcenturyhaveappearedtractionandhangingdrillmachine,andtheuseofgrainstrengthofthemachine.50sdevelopmentprecisionmachine.Chinafromthe1950stointroducegrainsuitabledrill,cottonmachine,etc.60shasdevelopedintoasuspen
3、siontypegrainmachine,centrifugalmachine,universalframeandgassuctionstylesuchasmachinemachineDuoZhongtype,andgrindinglinestothedevelopmentofthedevice.Inthe70s,hasformedtheseedingmachinegeneralmachineandgrainjointseedertwoseries,andhasdevelopedprecisionmachine.EuropefirstTaiwanmachinem
4、adein1636inGreece.In1830,therussiansinlivestockHuaLimoreonthesowingdeviceLiBomachinemade.Britain,theUnitedStatesandothercountriesin1860yearslaterstartedmassproductionworkgrainsuitabledrill.20centurieslaterperiod,thereappearedthetractionandhangingdrillmachine,andtheuseofgrainstrengtho
5、fthemachine.In1958,NorwayappearfirstTaiwancentrifugalmachine,50sgraduallydevelopedallkindsofprecisionmachine.Chinainthe1950sintroducedfromabroadgrainsuitabledrill,cottonmachine,the'60sandhassuccessfullydevelopedsuspensiontypegrainmachine,centrifugalmachine,universalframeandgassuction
6、stylesuchasmachinemachineDuoZhongmodels,andhasdevelopedgrindinglinesofthedevice.Inthe70s,hasformedtheseedingmachinegeneralmachineandgrainjointseedertwoseriesandproduction.Forgrainandintertillagecrops,grasses,andallkindsofvegetableswithsuitabledrillandXueBomachinearealreadywidelyused.
7、Atthesametime,alsohasdevelopedDuoZhongprecisionmachine.Cornisuniform,sowingmachinedepthisconsistent,stable,coverearthgoodrowspacing,saveseeds,workefficiencyhighercharacteristic.Thecorrectuseofmachine4黑龙江工程学院本科生毕业设计shouldpayattentiontothefollowingpoints:master101inthemaintenanceofthef
8、ieldbeforeop