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Deicing salt and snowbroth are frequently used in the road of northern region in winter, and thus the erosion has largely sprung up. 我國北方公路鼕季經(jīng)常積雪、結(jié)冰,養(yǎng)護(hù)部門在保通的過程中,被迫大量使用除冰鹽、融雪劑,因此造成路麪大麪積嚴(yán)重剝蝕。