"余怀"是个多义词，它可以指余怀（明末清初文人）,余怀（工艺美术师）,余怀（景德镇余怀陶艺工作室主任）。
对怀山药道地产区的铁棍山药及其零余子中淀粉、脂肪、氨基酸和灰分等营养成分进行分析比较。
The components of starch, fat, amino acid and ash were determined to analyzed nutrient components of iron stick yam and bubil.
实验结果表明，怀山药零余子提取物具有明显的体外抗氧化作用。
The results showed that the extracts from bulbil of Dioscorea opposita have significant antioxidant activity in vitro.
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