... tractor tank filler neck；拖拉机油[水]箱加注颈口 tractor test；拖拉机试验 tractor testing and adjusting；拖拉机试验和调整 ...
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It must be said that our test tractor was fresh off the stocks.
必须说，我们的试验拖拉机是新鲜的。
The results indicate that the established test system meet the requirement of engineering precision and can distinguish main tractor noise source effectively.
结果表明：所建立的测试系统可满足工程精度要求，能有效识别拖拉机主要噪声来源；
A new type of random program constant amplitude load spectrum is introduced, which is used in laboratory simulation test and life prediction of tractor components under random loading.
本文介绍了一种新型的随机程序载荷谱，以用于拖拉机零部件在随机载荷作用下的室内模拟试验与寿命预测。
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