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The catechin, ursolic were determined by HPLC.The polysaccharide and tannide were determined by sulphoacid-phenol and complexometric titration methods respectively.

用HPLC法测定儿茶素和熊果，-法测定多糖，络合滴定法测定鞣质的含量。

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at full blast, at full tilt, at great length, at hand, at heart, at home, at intervals, at its best, at large, at last,

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3G, 401(K), a,

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原声例句
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Green tea contains both caffeine and an organic compound known as catechin.

绿包含咖啡因和一种叫作儿酸有机化合物。

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Scishow 精列

And catechins inhibit the action of lipases, which gives them a minor fat blocking effect.

而儿则会抑脂肪酶运动，从而产生微弱脂肪阻隔作用。

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精英语短文

And green tea contains beneficial polyphenols called catechins, which may help protect skin from sun damage and skin cancer, according to preliminary research.

绿含有一种叫做儿有益多酚， 根据初步研究，可能有助于保护皮肤免受阳光伤害和皮肤癌。

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at once, at one stroke, at one time, at present, at random, at regular intervals, at school, at sea, at six, at stake,

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3G, 401(K), a,
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