"松树皮"是个多义词，它可以指松树皮（松科松属植物的树干内皮）,松树皮（中药）。
马尾松树皮混合胶的成本与纯酚醛胶相比，可降低40％左右。
The cost of the adhesive was decreased, which was estimated at by 40% in comparing with that of PF-resin.
系统研究了以加勒比松树皮为原料提取原花青素的方法及工艺条件。
The method and technological conditions for extraction of extract procyanidins from Caribbean pine bark were systematically investigated.
老人不知何时已来到我的面前，一只像老松树皮一样的手颤抖着递过来一元钱！
The old man came to me, handing me a one-Yuan bill with one rough and quivering hand silently.
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