The blower used in a combine and running at a fixed speed (n=855 r/min ) meets the cleaning load requirement in field operation. The tests indicate that the total loss rate, broken grain rate and clean grain rate are 1.09%, 0.05%, 98.15%, respectively.
In this paper,according to information of agricultural machine field operation which collected by precision agriculture import equipment in Heilongjiang state farm,recorders are made for operation and review of agricultural machine field operation is studied based on GPS and GIS,which using two ways to realize moveable operation review.
In this paper, according to information of agricultural machine field operation which collected by precision agriculture import equipment in Heilongjiang state farm, recorders are made for operation and review of agricultural machine field operation is studied based on GPS and GIS, which using two ways realize moveable operation review.
the application of CV in many aspects such as automatic check machine, intelligent harvest machine, intelligent process machine of agriculture and intelligent field work machine were reviewed;
So the writers used second-class indefinite comprehensive judgment of fuzzy mathematics to research the mode choice and optimization off harvester in well-irrigation rice area of Sanjiang Plain, and ascertained the reasonable machine mode that was reference of field work.
Precision seeding is not only field work with high technology and high standard, but also a new agricultural mechanization technology of remarkable benefit and practical produce. It is the main content of "cost-saving and profit-enhancement engineering technology" which is extended by Agriculture Ministry.
In connection with productive practice of farm mechanization in Hailun County in recent years, this article has estimated comprehensive economic effect of item in field operations between farm machinery, labour and animal power by method of mathematical measure of economic effect.
The problems of farm machinery linear programming Selection model in practical using are analysed according to the requirements and the characteristics of farm machine field operations in China.
The root-mean-square values of the vibration acceleration of the testing spot under the four working conditions were 0.159 1 m/s2, 0.108 7 m/s2, 0.093 8 m/s2 and 0.070 4 m/s2 respectively, and the dominant vibration frequencies were 142.6 Hz, 56.6 Hz, 36.6 Hz and 36.6 Hz respectively.
Aiming at the rupture happening on the base of the remote cylinder during the 1LB─240 Integral Reversible Plow working, Solidworks2001,a D3 software was used to establish the virtual prototype of 1LB─240 Integral Reversible In Furrow Moldboard Plow.
Some field operation experiences are summarized, showing that the system has very high reliability and accuracy, and the maximum location error is about 3 km (not more than 0.3% of the total line length).
For routine analyses involving numerous samples or for field operation of on-site instruments, cryogenic traps are inconvenient: their operation is timeconsuming and automation is technically demanding.
Four wear modes and four wear mechanisms of diamonds in saw blades are identified in a study of varied segments damaged in field operation of sawing hard stone.
The results of the field work call into question the issue of whether the signals used by captive dolphins may be shaped by the task they are required to perform rather than what they would do more naturally.
On the basis of personal field work as well as a sound acquaintance with the literature dealing with elite groups, the author aims at suggesting how differences from one society to another challenge universalistic understanding.
The data-acquisition system is controlled by a PC or the Mark IV Field System program (now used internationally in the pursuit of radio interferometry), which is installed in the radio telescope's central computer using an RS-232 interface.
The master equation for the density operator of the atom-field system is derived and an analytic solution is obtained for the case where the change in the field is adiabatically slow.
We show that the Pedersen surface conductivity of the Jovian ionosphere must have a lower limit to maintain the electric current that arises in the disk-rotating magnetic field system.
The development of Dongfeng-12 model machine,small size sugarcane harvester is described in this paper.As a third generation machine,the con- structional features running processes and main technical data of the model machine are here introduced.The results of performance test are also criti- cally analysed. This model machine belongs to a new type of small size all-swath wind- rowing sugarcane harvester.The running process of the model machine in the field include:dividing sugarcane,lifting,cutting,chain-c...
While traditional farming experiences and preliminary experiments on minimum tillage showed a preference of alternating furrow slice inverting and deep loosening without inverting in some of the agricultural regions in China, the development of a PTO driven furrow slice inverting rotary plow as primary tillage implement inplace of the conventional moldboard plow was justified from the standpoint of less tractor traffic, less soil compaction, less energy consumption, sowing in time etc. In this paper, an ide...
Track shoes are an important part of a tractor, They wear out easily when a tractor works in the field. It is subjected 1o the low stress abrasive wear. Our task is to find some suitable materialswhich can replace Hadfietd steel in making track shoes. In this paper the authors outline the main work accomplished in this field and describe a simulative abrasion lest machine and test curves. This paper also presents an anallysis of the wearing surface and a discussion on the abrasicn mechanism.
田间作业
field operation
查询“田间作业”译词为用户自定义的双语例句
其他
相关查询:
2008 CNKI－中国知网