The existence and uniqueness of limit cycles of a biochemical system is proved.

本文研究一类生化系统的极限环的存在性与唯一性；

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Carbonate sediments in all environments are basically products of an ancient biochemical system.

一切环境的碳酸盐沉积物，基本上都是古代生物化学体系的产物。

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For the complex biochemical system of extracted liquid of tea leaves, ANDEUF-01 ultrafiltration pilot unit is used to refine it.

针对茶叶水提取液这一复杂的生物体系，本研究采用ANDEUF-01超滤中试机对提取液进行精制。

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Mr Gazzaniga appeals, not wholly convincingly, to quantum mechanics and complexity to provide escape routes from the conclusion that, because the body is a biochemical system, what happens in the mind is physically determined.

ECONOMIST: Where there��s a will there��s a way

The strain affecting the patient was isolated and grown in the lab, and biochemical analysis found that the bacteria prevented the immune system responding as normal by "shooting the messenger".

BBC: NEWS | Health | How the flesh-eating bug attacks