n.驾滑冰船
With the early frostbiting and its principle, it is concluded that freezing resistance of concrete during early setting process has much relevance to the formed microstructure of cement stone. 从混凝土的早期冻害及机理入手，得出了硬化初期混凝土的抵抗冻害与水泥石微观结构形成有密切关系。
