隔墙提供了面向街道的私密性，同时允许视野和光线穿透，它由预制混凝土煤渣砖建造，让人想起过去的年代。
The screen offers privacy from the street while allowing views and light to permeate and is constructed from standard pre-cast concrete breeze blocks reminiscent of a bygone era.
在20世纪晚期，另一种块材取代了粘土砖，这就是所谓的煤渣砌块，它们大都由混凝土制成。
Another type of block replaced clay bricks in the late 20th century. It was the Cinder block, made mostly with concrete.
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