名词
中文翻译：谷物筛选机
同义词：
['grain mill', 'grain screener']
例句：
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1.The grain sieve is used to separate the fine grains from the coarse ones.
谷物筛选机用于将细粒和粗粒分离。
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2. The farmer used a grain sieve to clean the wheat before it was sold.
农民使用谷物筛选机来清理小麦，然后出售。
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3. The grain sieve was an essential tool in the ancient grain milling process.
谷物筛选机是古代谷类磨粉工艺中必不可少的工具。