用标准曲线法定量计算鞣酸的脱出率为48．8%。
纳米银颗粒与羟基发生电荷吸附作用，固定在鞣酸的空间网状结构中，稳定存在。
There could be a coordination bond between the silver atom and the hydroxyl group of tannic acid, which stabilize the Ag nanoparticles in the spatial reticulate structure of tannic acid.
红栎树的林分枝的叶子富含鞣酸，甚至可以为毛毛虫提供远离疾病的安全避难所。
Forest stands of red oaks, with their tannin-rich foliage, may even provide caterpillars with safe havens from disease.
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