测算油气井开采过程中逸散的天然气量是一个难题。
Measuring the amount of natural gas that is leaking during drilling is one challenge.
最后是散逸层，这是大气的最外层。
Last is the exosphere, which is the outermost layer of the atmosphere.
这件外套是用发热材质做的。它能防止体温散逸而达到保暖效果。
This jacket is made of thermal material. It preserves body heat and keeps you warm.
温室气体会蓄热并阻止热量从大气向太空散逸。
Greenhouse gases trap heat and prevent its escape from the atmosphere into space.
温室气体会蓄热并阻止热量从大气向太空散逸。
Greenhouse gases trap heat and prevent its escape from the atmosphere into space.
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