英语听力：探索发现 科学新发现：我们的大气层-19

搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。

"we call it punset for pingpang ball satelite, and it also be the first thing we do is to have cut the pingbang ball on air ,then your experiment goes inside. and simplist my favourite for etick, i grow many mush melon and it drop in the pingpang ball. seems satellite construction at its best and then we take them to the edge of the space."

in the thin air of the stratis here, the marsh¹ mellow² is no longer held together by higher pressure. air bubbles inside it expand, causing the stponge cande to blow outwards³ and first open the punset. 

just as the thin air is dangerous for marsh mellows,it can also affect flash and blood.contrary your popular belief, your blood on boil ,it is held in by your blood vessel⁴.

 

but any expose flash will swash out like the marsh mellow,and that around 26000 feet the air too thin to breath. there just aren't enough molecules⁵ in every lungue follow their. and starved of the oxygen ,your brain will begin to shut down.

 

you need exchange to call it get you, but the lack of pressure will get your first.

分享到：