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.
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.
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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