It is well-known that four wheel driving can take full advantages of adhesion weight, and has great tractive power and strong cross country ability, but its shortcomings are short of studying on.
对于四轮驱动可充分利用粘着重量、具有牵引力大、越野能力强等优点是人所共知的，然而对于其不足之处却缺乏研究。
When driving on slippery surfaces, the four-wheel drive system can automatically transfer up to 100 percent of torque to the front wheels when additional traction and stability is required.
防滑表面上开车时，四轮驱动系统可以自动转移到100%的扭矩和前轮，当更多的牵引和稳定性是必须的。
The design of JL 1075 combine harvester generally divide four system which include cutting mechanism system, force by wheel driving system, chain transmission and force auxiliary system.
JL 1075联合收获机低割装置的设计大体分为四大系统：切割系统、地轮驱力系统、链传动系统和动力辅助系统。
The mathematical model of the four-wheel driving mobile robot is established, which includes kinematical model, dynamic model and motor model.
本论文建立了四轮驱动式移动机器人的数学模型，其中包括运动学模型、动力学模型和电机模型。
Hydromechanical transmission, four-wheel drive offer larger driving force and breakout force: light and flexible small turning radius is particularly suitable for limited field.
采用液力机械传动、四轮驱动，具备较大的驱动力和掘起力：转弯半径小，轻便灵活，尤其适合狭窄场地作业。
A four-wheel mobile robot driving with two motors is designed, and three stages are taken to develop the robot body.
本论文设计了双电机驱动的四轮移动机器人，并分三步进行机器人本体的开发。
A four-wheel mobile robot driving with two motors is designed, and three stages are taken to develop the robot body.
本论文设计了双电机驱动的四轮移动机器人，并分三步进行机器人本体的开发。
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