第1个回答 2009-06-07
In world grain crop, maize's cultivated area and gross product are next only to the wheat , paddy rice but occupy 3rd place, average per unit area yield lives in the first place then. The maize is one of our country staple food crop , cultivate but the product already reaches 21 million hectares. That the maize harvests is a maize cultivate the most strenuous manual labour of middle , is to lighten peasant labour intensity , to mention the efficiency harvesting, realizing machinized gains of maize as soon as possible is the most important task of current farm mechanization job , face gradually growing need, development of our country maize machinery lags relatively , existence is burning the function is unitary , structure does not wait for a problem rationally. Strengthen maize gains machinery scientific research therefore , developing out that the function is more complete , more advanced maize of structure gains machinery is to lay bare the first problem before scientific research worker currently. The problem aims at developing falling having the self-propelled maize combine plucking the ear , the straw stem cutting up a reclaim waiting for the various function cutting a platform. Basis analysing demonstration in a great quantity has been listed in the main body of a book first , has ascertained the self-propelled stem ear being the population design plan collecting the type maize combine concurrently. The call for according to design specification, ascertains every main job component scheme and parameter by the fact that large amount of theory secretly schemes against. That the vertical hob cuts up a device is that the problem FOAK burns , already gain and the pragmatic new model patent , the main body of a book is discussed with regard to having cut up device part work, priority has analysed flat knife installation parameter and knife edge curve. The main body of a book has been experienced according to large amount of theory and practice , has analysed the major factor affecting transportation reliability's , has brought forward a little measure improving clip hold transportation , has been carried out a certificate and since the transportation reliability is to be related to a important problem of complete machine reliability,these measure all is a very effective. Has adopt practical experience and theory to calculate the method being tied in wedlock each other in the process studying in the problem,self-owned useful experience of make full use of and achievement, have carried out improvement and FOAK on a few links, need having adapted to a marketplace's much better. Problem acquisition is more successful , self own passes an appraisal on 2003 , the various model machine function index reaches call for equally. That what the main body of a book studies the self-propelled problem stem ear annexes collects the type maize combine has been that multifunctional maize of one kind of new model combine , whose structure is new and original , the function is advanced , has done bold FOAK and trial , has filled in in the homeland blank space on a little priority and difficult point problem, the combine has establish a basis for the much better reliability maize developing our national condition suitable further.
第2个回答 2009-06-07
4 self-propelled YZJ stems ears annex to harvest a maize cutting platform physical design under the combine Make a summary in world grain crop, maize's cultivated area and gross product are next only to the wheat , paddy rice but occupy 3rd place, average per unit area yield lives in the first place then. The maize is one of our country staple food crop , cultivate but the product already reaches 21 million hectares. That the maize harvests is a maize cultivate the most strenuous manual labour of middle , is to lighten peasant labour intensity , to mention the efficiency harvesting, realizing machinized gains of maize as soon as possible is the most important task of current farm mechanization job , face gradually growing need, development of our country maize machinery lags relatively , existence is burning the function is unitary , structure does not wait for a problem rationally. Strengthen maize gains machinery scientific research therefore , developing out that the function is more complete , more advanced maize of structure gains machinery is to lay bare the first problem before scientific research worker currently. The problem aims at developing falling having the self-propelled maize combine plucking the ear , the straw stem cutting up a reclaim waiting for the various function cutting a platform. Basis analysing demonstration in a great quantity has been listed in the main body of a book first , has ascertained the self-propelled stem ear being the population design plan collecting the type maize combine concurrently. The call for according to design specification, ascertains every main job component scheme and parameter by the fact that large amount of theory secretly schemes against. That the vertical hob cuts up a device is that the problem FOAK burns , already gain and the pragmatic new model patent , the main body of a book is discussed with regard to having cut up device part work, priority has analysed flat knife installation parameter and knife edge curve. The main body of a book has been experienced according to large amount of theory and practice , has analysed the major factor affecting transportation reliability's , has brought forward a little measure improving clip hold transportation , has been carried out a certificate and since the transportation reliability is to be related to a important problem of complete machine reliability,these measure all is a very effective. Has adopt practical experience and theory to calculate the method being tied in wedlock each other in the process studying in the problem,self-owned useful experience of make full use of and achievement, have carried out improvement and FOAK on a few links, need having adapted to a marketplace's much better. Problem acquisition is more successful , self own passes an appraisal on 2003 , the various model machine function index reaches call for equally. That what the main body of a book studies the self-propelled problem stem ear annexes collects the type maize combine has been that multifunctional maize of one kind of new model combine , whose structure is new and original , the function is advanced , has done bold FOAK and trial , has filled in in the homeland blank space on a little priority and difficult point problem, the combine has establish a basis for the much better reliability maize developing our national condition suitable further.
不知道可不可以