The pavement cement concrete is usually prepared by sand, stone, cement, water, feed mixing process, the quality fluctuates easily.
路面水泥混凝土通常是按砂、石、水泥、水一次投料的搅拌工艺制备的，其质量容易波动。
The pavement cement concrete is usually prepared by sand, stone, cement, water, feed mixing process, the quality fluctuates easily.
路面水泥混凝土通常是按砂、石、水泥、水一次投料的搅拌工艺制备的，其质量容易波动。
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