Noise within a tractor cab is concerned with the noise sources of the tractor and the acoustic characteristics of the cab itself.

拖拉机驾驶室内噪声的大小与拖拉机噪声源及驾驶室本身的声学特性有关。

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Vulnerable parts in tractor cab are found by using stress measurement, vibration tests and finite element approach, and verified by fatigue tests on vibration test table.

本文通过电测应力、振动测试及有限元计算找出驾驶室的薄弱环节，并在振动试验台上进行疲劳试验验证。

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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。

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The court heard Mr Mould had been standing outside the tractor cab to start the motor with a screwdriver when it began moving forward and ran him over.

BBC: Leicester