The HPA axis is part of the neuroendocrine system that manages stress.

HPA轴是应对压力的神经内分泌系统。

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First of all, for strength and stability, mainly a cylinder, cover the wall, the water pressure check and impeller stress test, the axis of strength checking.

首先进行强度和稳定性计算，主要进行了筒体、端盖的壁厚计算、水压试验应力校核以及叶轮、轴的强度校核。

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These receptors control the activity of the hypothalamo-pituitary adrenal (HPA) axis, an endocrine system that is activated in response to stress.

这些受体可以控制下丘脑-垂体-肾上腺（HPA）轴的活性，HPA轴是一个对应激产生反应的内分泌系统。

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