介绍了硬填料密封的基本结构及密封原理，给出了比压计算式。

The basic structure and the seal principles of the hard packing were presented, and the formula of specific pressure was given.

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简约型停车场地坪是一种由水泥、超硬耐磨填料、特殊添加剂和无机颜料组成的地面耐磨材料。

PlainPlain parking lot floor paint is composed of cement, hard abrasive resistant filling, special additive and inorganic pigment.

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