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The correlation between potassium and nicotine content of leaves were negative.
这说明在烟叶的全生育期内,烟叶钾含量增加时,烟碱含量是减少的.
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Thiamethoxam is a highly active insecticide as if new nicotine compound.
噻虫嗪是一种具有优异活性的类似于新烟碱类化合物的杀虫剂.
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The adrenoceptor antagonist phentolamine blocked the analgesia induced by nicotine injection.
烟碱引起的镇痛效应可被肾上腺素受体拮抗剂酚妥拉明部分阻断.
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The true alkaloid nicotine in Nicotiana functions as an allomone against many insect species.
烟草属中的真生物碱,烟碱作为利已激素,能防治许多昆虫.
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本文论述了利用流体静力学原理对硫酸烟碱的提取工序进行工艺改造的方法.
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I hope you will see to it that both my retirement and my funeral are simple.
我退休方式要简化,死后丧事也要简化,拜托你们了.
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Like the marriage dance, the funeral dance is also varied and diversified.
和婚俗舞蹈一样, 丧事舞蹈同样五花八门,样式繁多.
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我们对圣海伦斯火山作出的结论是许多科学家共同协作的成果.
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