以下为句子列表：
英文: The analysis results demonstrated that its efficiency in factors analysis of multi-factors, multi-levels and few testing time mix proportion uniform-design experiment of flexible concrete.
中文: 分析结果表明改进的灰色关联度在多因素、多水平数、试验次数偏少的柔性混凝土配合比均匀试验的数据分析中是很有效的。
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