That means the rocky material is much like the moon and the rock that makes up the Earth.
这和月球以及组成地球的岩石相似。
RCCD is wide used in hydraulic engineering because it takes advantages of concrete dam's structure and material and earth-rock dam's construction method.
碾压混凝土坝是将混凝土坝结构和材料与土石坝施工方法的优越性结合起来，在水利工程中得到广泛应用。
The protective earth dike shall be earth-filled. no rock brick and concrete block or light and flammable material shall be allowed for filling.
防护土堤应用土填筑，不允许使用石块、砖块及混凝土块或者轻而可燃的材料填筑。
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