目的：观察冷、热环境下游泳运动员和非运动员生理和内分泌指标的变化，以及这些变化对人体免疫系统的影响。

AIM: To observe the changes of physiological and endocrine indexes in swimming athletes and non-athletes under coldness and hotness and their influence on human immune system.

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以自根苗为对照，研究了不同砧木对嫁接苗耐冷性的影响及生理机制。

Compared with own-rooted watermelon, the influence of different rootstocks on chilling tolerance of grafted watermelon seedlings and its physiological mechanisms were studied.

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目的观测冷生理盐水(NS)对腋路臂丛神经阻滞定位指示作用及其成功率的影响。

Objective To observe the location indicative effect of cold normal saline (NS) in axillary brachial plexus anesthesia and its influence on blockade success rate.

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