论述了在普通四轮拖拉机上加装废气控制装置的技术，设计了一种相配套的计算机安全监测系统。
Paper introduces a technique of the normal four-wheel tractor equipped with exhaust gas controlling device and designs a computer safety monitor system.
为了测量拖拉机动力输出轴的输出功率，设计了一套计算机辅助测试系统。
We design a set of computer aided test system for measuring the output power of the tractor motive power shaft.
文章还对拖拉机乘坐舒适性研究中的人—椅系统分析模型和计算机模拟设计问题作了简单介绍和分析讨论。
Operator-seat system analysis and computer modelling and simulation programs in tractor ride vibration research are also simply introduced and discussed.
以实测信号为依据，通过幅值域分析，探讨了拖拉机液压系统力调节弹簧刚度的概率设计方法。
According to amplitude analysis of the measurement signal, the probability DE sign method of finding the spring stiffness of the tractor's hydraulic draft control system is stud ied.
在拖拉机原有液压悬挂机构基础上，以80c 196kc单片机为控制核心，改进设计了电子液压悬挂控制系统。
Based on the former hydraulic hitch equipment of tractor improve and design of the electronic hydraulic hitch control system, the control core of this system is 80c196kc MCU.
本文系统地介绍了双闭环试验台的工作原理，主要工作部件的参数设计，并对手扶拖拉机室内模拟试验技术问题进行了探讨。
Working principles of dual closed-loop tester and parameter design for its major parts are introduced and indoor simulation testing technique for walking tractor discussed.
本文对拖拉机驾驶室内低频噪声预测进行了比较系统的研究，对降低驾驶室内噪声具有一定的理论依据和设计参考。
In this thesis, a relatively systematic study of noise prediction from low-frequency tractor cab has been done. It provides a certain theoretical basis for reducing cab noise.
本文对拖拉机驾驶室内低频噪声预测进行了比较系统的研究，对降低驾驶室内噪声具有一定的理论依据和设计参考。
In this thesis, a relatively systematic study of noise prediction from low-frequency tractor cab has been done. It provides a certain theoretical basis for reducing cab noise.
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