suspension for an agricultural working machines and equipment - on agricultural tractors or the like.

• 1. 农业机械设备的监控装置以及农业机械设备 [P] . 中国专利： CN111147803A . 2020-05-12
• 2. 农业机械设备的监控装置以及农业机械设备 [P] . 中国专利： CN205318164U . 2016.06.15
• 3. A hydraulic control device for a position - and / or work low control to agricultural working machines, in particular for attachment coupled with agricultural tractors equipment [P] . 德国专利： DE2931872B1 . 1980-07-10

  机译： 一种用于农业机械的位置和/或工作低位控制的液压控制装置，特别是与农用拖拉机设备连接的附件

• 4. Pivoting device for agricultural working machines connectable to the three-point suspension of a tractor [P] . 瑞士专利： CH612318A5 . 1979-07-31

  机译： 可连接到拖拉机的三点悬挂的农业作业机械的枢轴装置

• 5. Holding device for to -, - or. annex of agricultural equipment and machines on tractors od. The like. [P] . 德国专利： DE1862672U . 1962-11-22

  机译： 用于-，-或的固定装置。拖拉机上的农业设备和机器的附件。类似。

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• 2. Theoretical and Empirical Analysis on Influence Factors of Modern Agricultural Equipment Level in the Process of Agricultural Sustainable Development [J] . Yan Tingwu, Li Lingchao, Wang Wang Ruixue 中国人口·资源与环境（英文版） . 2012,第001期
• 3. THE MEASURE EQUIPMENT OF THE RESISTANCE FORCES TO THE TRACTION OF THE CARRIED AGRICULTURE MACHINE ON TRACTOR REAR MOUNTED THREE POINT LINKAGE BY THE 3RD AND THE 4TH CATEGORY [C] . Augustin CONSTANTINESCU, Simion POPESCU International Congress Automotive, Safety and Environment . 2008
• 4. Mule South to tractor South: Mules, machines, agriculture, and culture in the cotton South, 1850-1950. [D] . Ellenberg, George Bolton. 1994
• 5. Analysis of Tillage Depth and Gear Selection for Mechanical Load and Fuel Efficiency of an Agricultural Tractor Using an Agricultural Field Measuring System [O] . Yeon-Soo Kim, Wan-Soo Kim, Seung-Yun Baek, 2020
• 6. Etude sur l'evolution de la concentration dans quelques sous-secteurs de l'industrie de la construction de machines non electriques en France. Machines et tracteurs agricoles (N.I.C.E. 361). Machines de bureau (N.I.C.E. 362). Machines textiles et leurs accessoires (N.I.C.E. 364.1).Materief de genie civil (N.I.C.E. 366.4). Materiel de levage et de manutention (N.I.C.E. 366.5) = Study on the evolution of concentration in some sub-sectors of the non electrical machinery manufacturing industry in France. Agricultural machinery and tractors (N.I.C.E. 361).Office machines (N.I.C.E. 362). Textile machinery and accessories (NICE 364.1). Earth-moving equiprment (N.I.C.E. 366.4). Lifting and handling equipment (NICE 366.5). Studies: Evolution of concentration and competition series [O] . 1973

• 1. A Survey on Working under Trees with an Agricultural Narrow Tractor in Italy [J] . Leonardo Vita ,Davide Gattamelata ,Daniele Puri . 农业科学与技术：A . 2021,第002期
• 2. Automatic Guidance of an Agricultural Tractor along with the Side Shift Control of the Attached Row Crop Cultivator [J] . Javad Robati ,Hossein Navid ,Mahdi Rezaei . 农业科学与技术：B . 2012,第001期
• 3. Development of a Data Acquisition System to Optimizing the Agricultural Tractor Performance [J] . J. M. Serrano ,J. O. Peca ,S. Shahidian . 农业科学与技术：B . 2011,第005期
• 4. 美国农业和农业机械设备制造业 [C] . . 中国农业机械学会2008年学术年会 . 2008
• 5. 虚拟现实技术应用于农业机械营销的可行性调研分析 [A] . 吴小威 . 2018