A city full of armored concretes, cars and people;

一座钢筋水泥、车流不息、人流不息的城市森林；

The crack-resistant property of slag concretes are evaluated.

还对矿渣砼的抗裂性进行了评估。

Instead of dealing in abstracts you now have to deal in concretes.

你只好以处理具象的事物，取代处理抽象的事物。

The properties of concretes can be greatly imProved by the addition of polymers.

混凝土的性能在很大程度上能由于聚合物的加入而得到改善。

Moreover, 27 small cube concretes are investigated to the bond strength per area.

此外，还进行了单位粘结面积上粘结强度的试验，共27个小试件。