Air-entraining agent increases impermeability of hybrid fiber concrete.引气剂有助于提高混杂纤维混凝土的抗渗性。Even an air - entraining agent can be used because the minute pores are discontinuous.甚至可以使用加气剂,因为小的气孔是不连通的.Third, the option of ...
The soles are made of leather.鞋底是皮革做的。The grit beneath her soles grated harshly on the wooden deck.粘在她鞋底的沙砾蹭在木甲板上发出刺耳的声音.The soles of his feet were raw with chilblain.他的脚底生了冻疮很疼痛....