Paul hooked his tractor to the car and pulled it to safety.
保罗把他的拖拉机挂在那辆小汽车上,然后把它拖到安全的地方。
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。
Safety of the tractor transmission excited by non-stationary random dynamic load is explored.
本文探讨非平稳随机动载荷作用下的拖拉机传动系统的安全性问题。
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