搜狐首页 - 新闻 - 体育 - 娱乐 - 财经 - IT - 汽车 - 房产 - 女人 - 短信 - 彩信 - 校友录 - 邮件 - 搜索 - BBS - 搜狗 
Sohu >> English home >> Language Tips >> Culture Bites
我们为什么会流汗?
(China Daily) Updated:2005-07-27 13:44
我们为什么会流汗?
 

  We perspire to maintain to keep the temperature of our internal thermostat set to an average, normal temperature of 98.6 degrees Fahrenheit. Our bodies come fully equipped with a temperature center in the brain, which consists of a control center, a heating center, and a cooling center.

  Our bodies use approximately 2,500 calories of our daily intake of calorie-laden food to fuel the body. This process, known as oxidation, burns the calories, producing enough heat to bring 25 quarts of water to the boiling point. Obviously, our bodies cannot tolerate this heat, which causes the temperature of the blood to rise dramatically, and the cooling center to springs into action.

  The cooling center slows the calorie burning process, and dilates, or opens, the blood vessels in the skin to release the excess heat, and the fluid known as perspiration.The release of this fluid cleanses the body, as it pours through our pores, which consist of millions of tiny openings in the skin. Perspiration emerges on the surface of the skin in the form of tiny, microscopic droplets, which quickly evaporate, and cool the body to its normal temperature.

  Evaporation of perspiration on humid days slows, and requires the assistance of manmade inventions, such as fans and air conditioners, to carry away the moist air, so our perspiration evaporates, and so our internal thermostat returns to it's normal setting of 98.6 degrees Fahrenheit. Apparently, our cooling center is not self-sufficient!

  Notes:

  perspire: 流汗

  thermostat: 自动调温装置

  oxidation: 氧化

  quarts: 夸脱

  dilates: 膨胀,扩大

  perspiration: 排汗

  pore: 毛孔

  microscopic: 用显微镜可见的

  

  

搜狗(www.sogou.com)搜索:“center”,共找到 13,039,509 个相关网页.
Comment This | Font Size  Large     Medium    Small | Print This | Close
Related Stories
  • 我们为什么会眨眼睛?(07/25 13:52)
  • 氦气球是怎样升上天空的?(07/22 13:34)
  • 毕业生为什么要穿长袍戴方帽?(07/20 13:31)
  • 人为什么要眨眼?(07/18 13:27)
  • 何谓数字电视?(07/15 13:56)
  • 世界上飞得最快的海鸟(07/13 13:35)
  • 我们究竟需要多长时间的睡眠?(07/11 13:46)
  • 什么是橡胶?(07/08 13:32)
  • 人为什么会打哈欠?(07/06 13:37)


  • ChinaRen - 搜狐招聘 - 网站登录 - 帮助中心 - 设置首页 - 广告服务 - 联系方式 - 保护隐私权 - About SOHU - 公司介绍
    Copyright © 2005 Sohu.com Inc. All rights reserved. 搜狐公司 版权所有