Concrete is a mixture of sand and cement.
混凝土是沙和水泥的混合物。
According to the concrete condition in the field, the mixture design was recommended.
并根据工地的实际情况进行了配合比设计。
P92 Concrete is a mixture of water, sand and gravel, and Portland cement.
混凝土是由水、沙和砾石、波特兰水泥拌合而成。
P92 Concrete is a mixture of water, sand and gravel, and Portland cement.
混凝土是由水、沙和砾石、波特兰水泥拌合而成。
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