Ash clouds like this are impressive to see, and they can have a dramatic influence on air quality and vegetation, including crops.
类似这样的火山灰云触目惊心，其对空气质量以及包括农作物的植被具有剧烈的影响。
FlightGear 2.0 is out! - Dramatic new 3d clouds and lighting conditions.
《FlightGear》2.0版本发布了！——新增动态三维云层效果和光照环境。
Among the dramatic plans featured is the us Army's Project Cirrus, an experiment in 1947 to weaken a Caribbean hurricane by "seeding" its clouds.
其中最引人注目的特色设计是美军人工影响飓风计划(Project Cirrus)。这是美军于1947年进行的一项实验，通过“种云”削弱加勒比飓风。
Among the dramatic plans featured is the us Army's Project Cirrus, an experiment in 1947 to weaken a Caribbean hurricane by "seeding" its clouds.
其中最引人注目的特色设计是美军人工影响飓风计划(Project Cirrus)。这是美军于1947年进行的一项实验，通过“种云”削弱加勒比飓风。
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