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【英语时差8,16】吸管的工作原理（下）

时间：2015-12-01 07:53:37

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（单词翻译）

This same principal explains how a barometer1 measures the atmospheric2 pressure. Since mercury is much heavier than water, the atmospheric pressure can only support a column of mercury about thirty inches high. But as the atmospheric pressure changes, so does the height of the column it can support. When the meteorologist announces that the barometric3 pressure is twenty-nine inches of mercury, it means that the air pressure is capable of supporting a column of mercury twenty-nine inches high. You could measure the atmospheric pressure with a column of water, but a thirty-foot water barometer would be much more cumbersome4 than a three-foot mercury barometer.


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1 barometer fPLyP     
n.气压表，睛雨表，反应指标
参考例句：
  • The barometer marked a continuing fall in atmospheric pressure.气压表表明气压在继续下降。
  • The arrow on the barometer was pointing to"stormy".气压计上的箭头指向“有暴风雨”。
2 atmospheric 6eayR     
adj.大气的，空气的；大气层的；大气所引起的
参考例句：
  • Sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • Clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
3 barometric 8f9aa910b267a0dd0a4a3f7ad83555f5     
大气压力
参考例句：
  • Electricity compensates for barometric pressure as well as system pressure variations. 用电补偿大气压和系统压力的变化。
  • A barometric altimeter indicates height above sea level or some other selected elevation. 气压高度表用以指示海平面或另外某个被选定高度以上的高度。
4 cumbersome Mnizj     
adj.笨重的，不便携带的
参考例句：
  • Although the machine looks cumbersome,it is actually easy to use.尽管这台机器看上去很笨重，操作起来却很容易。
  • The furniture is too cumbersome to move.家具太笨，搬起来很不方便。

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