文章对泡桐各器官营养元素含量及其吸收循环规律进行了研究。

The nutrient element content, uptake and cycling of each Paulownia organ are studied in the paper.

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分析硫酸吸收循环槽加水管的腐蚀问题及加水管原设计中存在的缺陷，介绍采用F4材料研制的新加水管。

This paper analyzes the corrosion problem of absorption and circulation sulfate tank and defects in original water supply pipe design, recommends a new water supply pipe developed by F4 material.

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为了简化吸收循环热力学分析方法，通过吸收循环和压缩式循环的对比，提出吸收循环卡诺模型分析方法。

The Carnot analysis method was proposed for the simplification of the thermodynamic analysis of the absorption cycle, by the comparison of the absorption cycle and the compression cycle.

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In some cells they're recycled, that is the cell is able to take up the neurotransmitter after it's released and restore it, but most often there are enzyme systems inside the pre-synaptic membrane where those neurotransmitters are synthesized.

在一些细胞中神经递质可以循环利用,这些细胞可以吸收,已经释放出的神经递质并重新储存起来,但更常见的是突触前膜中含有酶系统,在此合成神经递质

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