There are scrapers at both sides of driving beam for scraping sundries amassed on rail surface all the while.

驱动架两端表面分别装有刮削板，随时刮扫积聚在导轨表面的杂物。

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There are scrapers at both sides of driving beam for scraping sundries amassed on rail surface all the while.

驱动架两端表面分别装有刮削板，随时刮扫积聚在导轨表面的杂物。

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