Testing results show that the above measures have the obvious effects in reducing the vibration and lowering the noise of roller.
试验结果表明这三个方面的措施都是有效的，但组合起来效果更佳。
Testing results show that the above measures have the obvious effects in reducing the vibration and lowering the noise of roller.
试验结果表明这三个方面的措施都是有效的，但组合起来效果更佳。
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