双语例句

• 在自然群体中，总生物碱与烟碱和降烟碱的相关性减小，与新烟草碱和假木贼碱的相关性没有变化。

  In natural populations, the correlation of total alkaloid with nicotine and nornicotine decreased, and that with anabasine and anatabine did not change.

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