Therefore, the purpose of this study is to explore the haematogenous mechanism of exercise-induced lower hemoglobin and the diagnosis of its early changes by means of animal and human experiments.

因此，通过动物实验和人体试验，本研究旨在探索运动性低血红蛋白造血机制及其早期的诊断方法。

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But opponents say stem cell experiments are wrong because human embryos are destroyed.

VOA: special.2009.04.07

Some of the experiments focus on studying how orbiting in space can affect the human body and plant growth.

VOA: standard.2010.04.05

However, implementing the rules governing human experiments done with federal money is already immensely complicated.

ECONOMIST: Don��t let it happen again

And most kinds of science can be done cheaper and better by unmanned missions (the chief exception being human physiology experiments).

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The ability of these robot systems to naturally interact, learn from, and effectively cooperate with people has been evaluated in numerous human subjects experiments, both inside the lab and in real-world environments.

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