The standards of polyphenols were used to identify the phenolic compounds in napiergrass and their changes due to growth period and season.
另外，利用十种酚
化合物为标准品，测定不同生长期与
狼尾草中的酚化合物变化。
The standards of polyphenols were used to identify the phenolic compounds in napiergrass and their changes due to growth period and season.
另外，利用十种酚化合物为标准品，测定不同生长期与狼尾草中的酚化合物变化。
：
上例句、词性分
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