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1. The construction company needs to calculate the aggregate-cement ratio for the new project.
建筑公司需要计算新项目的水泥混合比。
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2. The engineer used the aggregate-cement ratio to determine the optimal mix for the concrete.
工程师使用水泥混合比来确定混凝土的最佳配比。
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3. The construction site had a high aggregate-cement ratio, which could affect the strength ofthe finished product.
施工现场的水泥混合比较高，可能会影响成品的强度。