地震学家们发现小地震越来越多，喷气口(fumarole)开始活动，火山口不断有微小的火山灰和水蒸气喷发出来。
Seismologists registered an ever increasing number of small earthquakes, fumaroles began to vent, and minor eruptions shot ash and steam out of its crater.
自火山喷发以来，纳布诺火山的山顶一直被大量的水蒸气，气体及火山灰所遮盖。
Since the beginning of the recent eruption, a dense plume of water vapor, gas, and ash has concealed the summit of the Nabro volcano.
结果仍然在处理，科学家们曾经预期撞击地点会喷发出水蒸气和许多其他气体，但目前他们只看到了来自于这些物质的微弱谱线。
Results are still coming in, but so far the scientists report seeing only weak emission from water vapor and a host of other gases that were expected to erupt from the impact site.
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