In the past, scientists have tried to eliminate Pseudomonas, Christner said, but now that it turns out to be a major factor in encouraging snow and rain, he wonders if that is a good idea.

 
  • 大气科学家早就知道,在大多数情况下,大气中的湿气需要附着在某些物质上才能凝结成雨雪。
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