名词
中文翻译：沙粒级配
同义词：
['sand size distribution', 'sand size distribution', 'sand size distribution']
例句：
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1.The engineer carefully measured the sand gradation for the construction project.
工程师仔细测量了该项目的沙子级配。
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2.The sand gradation of the beach is crucial for determining the water quality.
海滩的沙子级配对确定水质至关重要。
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3. The sand gradation in this area is very fine, suitable for building sandy beaches.
该地区的沙子级配非常细，适合建造沙滩。