concrete arc混凝土微拱桥concreteadj.具体的；实质性的；混凝土的n.水泥；混凝土；具体物v.凝结；结合concrete batch plant混凝土搅拌设备concrete involvement具体卷入concrete model craft钢筋模板工艺concrete transporter混凝土运送机concrete accelerator混凝土速凝剂concrete core sample混凝土芯样concrete temperature大体积混凝土concrete boring pile钻孔桩concrete arch bridge混凝土拱桥Concrete Dibber Bomb钢筋混凝土穿破炸弹