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姗姗来迟的大雪,降落需要几步?
富含水蒸气的空气上升到高处,那里温度很低,水蒸气在空气中的灰尘、污染物、火山灰、海盐等固体小颗粒上,凝结成液滴,称为云滴(Cloud Droplet),云滴内部的小颗粒称为云凝结核(cloud condensation nuclei, CCN)。
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今日热点
Trans troops ban blocked
Return to Earth
Agrees to limited ceasefire
Judge on USAID shutdown
On judicial impeachment call
Reinstating fired workers
Removing privacy setting
Patient dies post-therapy
Drops gun violence advisory
Factory production rises
Corruption trial begins
Earthquake shakes Bay Area
Worker stole $1.6 million
Tesla vehicles set on fire
Fire danger continues for OK
Honduras plane crash
Frozen meals recalled
Morgan says he’s OK
Delta plane wing hits runway
Siemens to cut jobs
Parents on missing daughter
'Get Together' singer dies
US housing starts rebound
'Sunrise on the Reaping'
Lebanon-Syria ceasefire
Free checked bag promotion
Woman charged w/ murder
Texas measles cases rise
Iguana migration study
To open headquarters in TX
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