The mesosphere rises to 85 kilometers high.

中间上升到85公里高。

The mesosphere is the third-highest layer of Earth's atmosphere above the stratosphere and the troposphere, which starts at the Earth's surface.

中间是平流和对流之上的的第三高，始于表面。

The plume was the first to have broken through to the " mesosphere" level, or layer, of Earth's atmosphere, the scientists said.

科学家们说，是第一个突破“中间”的烟柱。

When we get to the mesosphere, which reaches from 85 km above Earth down to 50 km, things don't get much better.

当我们到达上空 85 公里到 50 公里的中间时，情况并没有好转多少。

" It's the first time we've ever recorded a volcanic plume reaching the mesosphere, " said Simon Proud, a scientist at Oxford and Britain's scientific research center RAL Space.

牛津学和英国拉尔太空科学研究中心的一位科学家西蒙·普劳德说：“是我们第一次记录到到达中间的火山烟柱。”

Bluegill Triple Prime  was aimed at understanding lower atmospheric effects of such explosions in the mesosphere, while Tightrope was conducted as an anti-missile test in the stratosphere.

Bluegill Triple Prime 旨在了解此类爆炸对中间低的影响，而 Tightrope 则是在平流进行的反导试验。

Proud added that the only other volcanic plume that might have reached the mesosphere might have been released in the eruption in 1883 of Krakatau, a small volcanic island in Indonesia.

普劳德补充说，唯一可能到达中间的另一股火山柱可能是在1883年印度尼西亚的一个小火山岛喀拉喀托火山爆发时释放出来的。