“单宁酸”的概念、定义、翻译、参考文献-科学参考

单词	单宁酸
释义	单宁酸 Encyclopedia 理学单宁酸释 tannic acid单宁酸有机酚类的一类复杂化合物。存在于多种树木（如橡树和漆树）的树皮和果实中，也是这些树木受昆虫侵袭而生成的虫瘿中的主要成分，含量50%～70%。又称鞣酸、鞣质。
随便看	frequency criterion frequency curve frequency cutoff frequency dependence selection frequency-dependent conductivity frequency deviation frequency diagram frequency dictionary frequency difference splitting technique frequency discriminator frequency dispersion frequency distribution frequency distribution curve frequency distribution table frequency diversity and combining frequency divider frequency dividing network frequency division duplex-long term evolution, FDD-LTE frequency division multiple access frequency division multiple access, FDMA frequency division multiplex communication frequency division multiplexing frequency division multiplexing, FDM frequency division multiplexing，FDM frequency domain

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