Paper introduces a technique of the normal four-wheel tractor equipped with exhaust gas controlling device and designs a computer safety monitor system.
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.
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。
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