在正常情况下，由粘土组成的岩石产生的摩擦要比其他类型的岩石小得多。
Under normal conditions, rocks composed of clay produce far less friction than do other rock types.
接下来我做了一个粘土烤炉，用硬木和布做了一些其他的工具来烤面包。
Next I formed a clay oven and made some other tools from hard wood and cloth to bake bread.
第二，正如你所知，除了沙粒，沙丘还含有其他类型的颗粒，包括粘土和淤泥。
Second, as you know, sand dunes contain other types of particles, besides sand, including clay and silt.
应用推荐