In this paper, the theory about shear and clash in harrowing ballast is suggested and the formulae for determining the power of harrowing ballast are deducted.
对清筛机的扒碴工作原理目前还研究不够，本文提出了剪切、冲击扒碴原理，导出了确定扒碴功率的公式。
In this paper, the theory about shear and clash in harrowing ballast is suggested and the formulae for determining the power of harrowing ballast are deducted.
对清筛机的扒碴工作原理目前还研究不够，本文提出了剪切、冲击扒碴原理，导出了确定扒碴功率的公式。
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