The temperature is sensed by a thermocouple located in the vapourspace.
该温度由位于蒸气空间的热电偶所测出。
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Just a fortnight ago, astronomers using the Hubble space telescope identified water vapour in the atmosphere of an exoplanet, albeit a gaseous exoplanet some 150 light years away.
The next logical step would be a space telescope capable of picking up the chemical signatures of life, including the presence of oxygen, water vapour and carbon dioxide.