名词
中文翻译：树提取物
同义词：
['treeoil', 'tree resin']
例句：
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1. The tree extractive from thebark of the oak tree is usedin traditional medicine.
橡树皮中的树提取物在传统医学中被使用。
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2. Thetree extractive has been shown to haveanti-inflammatory properties.
这种树提取物已被证明具有抗炎性质。
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3. The tree extractivewas extracted using a solvent that would notharm the plant.
这种树提取物是通过一种不会损害植物的溶剂提取出来的。