It's just a consequence of normal metabolism.

这只是一个正常代谢的后果。

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Oxygen free radicals are middle products of the normal metabolism in human body.

氧自由基是机体正常代谢的中间产物。

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Test 7: the effect of 3 TMR on sheep was measured by the method of normal metabolism test.

试验7：采用常规代谢试验测定3种全混合日粮对绵羊氮代谢的影响。

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Diabetics whose pancreas does not function properly, so don't make enough insulin, don't have enough insulin present for normal glucose metabolism so they can't handle sugars properly.

糖尿病人的胰脏功能失调,因此胰岛素分泌不足,影响了正常的血糖代谢,所以他们不能正常地调节血糖

耶鲁公开课 - 生物医学工程探索课程节选

It is possible that AAPB release such compounds during their normal metabolism.

ECONOMIST: Bacteria and climate change: Invisible carbon pumps | The

The small study, published in the Journal of American Medical Association, is the first to look specifically at how electromagnetic radiation from cell phones affects glucose metabolism, a normal function, in the brain.

CNN: Cell phone exposure increases brain cell activity

Instead of cooling it to slow its metabolism we keep it functioning at normal temperature and with oxygen and nutrition.

BBC: 'Warmed liver' transplant first