A good calculating model of tractor economical life is no use, if there is no real, reliable data.
一个再好的拖拉机经济寿命计算模型，如果没有真实、可靠的数据，也是枉然。
They are thought to have leapt together with two rucksacks, one holding the body, the other filled with some of the child's favourite cuddly toys and a model tractor.
据推测，他们双双跳崖时携带着两个帆布包，一个装着儿子的遗体，另一个装着孩子心爱的抱抱玩具，还有一部玩具拖拉机。
The model can be used to analyze the effects of tractor and soil strength parameters on tractor performance, It is a useful tool for optimizing tractor performance in the field.
该模型可用来模拟田间试验、研究土壤强度和拖拉机参数对拖拉机作业性能的影响，对拖拉机使用性能的研究将起到一定的作用。
In this paper, a structural-acoustic model of a model tractor cab for finite element analysis was established, and the acoustic modal and the coupled structural-acoustic modal were analyzed.
该文以一拖拉机驾驶室模型为研究对象，建立了其声振耦合的有限元分析模型，计算了该驾驶室模型的声学模态和声振耦合模态。
This paper gives the dynamic model of the tractor steering system and deduces the frequency response function of the system.
本文建立了拖拉机转向系的力学模型，推导出系统的频率特性。
Results the finite element model of NTMA tractor for CAD was set up, which could predict the strength and displacement of every node and element of its own structure in the course of deforming.
结果建立了用于计算机辅助设计的镍钛记忆合金牵引器有限元模型，可以预测一定形状的牵引器在变形过程中(各时段)其本身结构中各节点、单元的受力、位移情况。
This paper analyzes dynamical performances of a full power hydraulic brake system of aircraft towing tractor, and sets up a mathematical model of the hydraulic brake system.
分析了全液压制动系统的动态性能，并建立了全液压制动系统的数学模型。
Using this system, the model laboratory table of tractor-trailer train can adjust the real-time speed, which is controlled by computer.
利用本系统可以实现汽车列车模型实验台对计算机控制速度的实时调节。
In this paper, fuel consumption model of diesel engine for tractor is developed based on statistical analysis for a lot of test data to predict fuel economics of tractor.
本文通过对大量发动机性能试验数据的分析和统计，提出了一种比较简单实用的预测拖拉机柴油机燃料经济性的效学模型。
The author has put forward a mathematical model of kinematics for tractor gearbox.
本文提出了变速箱运动学的数学模型。
It is often claimed that no-till with GM RR soy farming model saves energy because it reduces the number of times the producer must pass across the field with the tractor.
经常有人声称免耕种植抗草甘膦除草剂转基因大豆的耕作模型节能，因为它减少生产者开着拖拉机通过农田的次数。
The utility model relates to a bidirectional leveling mechanism for the arrangement of a front loader on a tractor, which belongs to the technical field of agricultural mechanical equipment.
拖拉机配前装载机双向端平机构，属于农业机械设备技术领域。
The utility model belongs to the field of agricultural machines. The utility model relates to a deep fertilizer spraying machine matched with a small four-wheel tractor.
本实用新型属于农业机械领域，涉及一种与小四轮拖拉机配套使用的深施肥机。
The simulation results show that the vehicle dynamic model can receive the vehicle response very well. So it is benefit to the research of the heavy tractor semi-trailer stability.
仿真结果表明，车辆动力学模型可以很好地仿真折叠工况下的车辆响应，为重型半挂车的极限工况稳定性研究提供准确参考。
By arranging the hooks at the front end of the tractor, the utility model can protect operators to the utmost extend, and simultaneously increases work efficiency.
本实用新型由于采用在牵引车前端设置挂钩的设计，可最大限度地保护工作人员安全，同时，还提高了工作效率。
The utility model discloses a train container tractor, which comprises a tractor, and the front end of the tractor is equipped with hooks.
本实用新型公开了一种火车货柜牵引车，它包括牵引车，在牵引车前端设 置有挂钩。
The utility model belongs to an accessory of a power device of a vehicle, in particular to an oil box of the diesel engine of a tractor.
本实用新型属于车辆动力装置的附件，尤其是拖拉机的柴油机油箱。
The problem that the utility model is to solve is to provide the transmission case of the rotary cultivation machine which is matched with a mini-sized hand tractor of 3-4 horsepower.
所要解决的问题是，提供一种能与3 - 4马力微型手扶拖拉机配合的旋耕机传动箱。
The optimizing design model of cylindrical gear of tractor final drive is presented and its target function is min-volume.
采用内点惩罚函数法寻求最优值，以小型拖拉机最终传动圆柱齿轮体积最小为目标函数对其进行计算机辅助设计。
The power and oil consumption meter for a tractor of the utility model can match with large and medium-sized tractors to carry out adjustment and maintenance without disassembling a tester;
本实用新型拖拉机功率油耗仪是配合大、中型拖拉机不拆卸检查仪进行调整维修。
The utility model relates to a hydraulic double-side self-tipping four-wheel trailer which belongs to the technical field of agricultural machinery and uses the original hydraulic system of a tractor.
一种液压双侧自卸四轮挂车属农牧机械技术领域，它用机车原有的液压系 统。
The utility model relates to a hydraulic double-side self-tipping four-wheel trailer which belongs to the technical field of agricultural machinery and uses the original hydraulic system of a tractor.
一种液压双侧自卸四轮挂车属农牧机械技术领域，它用机车原有的液压系 统。
应用推荐