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This is because even though all the raindrops out there are reflecting rainbow colors , they do so in very narrow beams .

这是因为即使所有的雨滴都反射光线，但是都是以极其狭窄的光束为单位进行。

While bentley may be most famous for his snowflake studies , he was an equal-opportunity weather-lover and conducted experiments with raindrops as well .

本特利不仅在雪花研究方面首屈一指，他也同样为气象爱好者，对雨滴也进行了大量实验。

The small fog droplets ( about 0.01 mm in diameter ) ensure that colors emerging from the fogbow will be nowhere near as vivid as occur in the larger raindrops that produce rainbows .

迷雾中微小水滴（直径仅在0.01毫米左右）使雾虹所呈现的色彩远不如较大雨滴所产生的彩虹那么鲜艳、生动。

The cloud characteristics included differences in the ease with which moist air in the tropics travels into the upper atmosphere , the speed with which raindrops fatten and the level of humidity required for clouds to form .

云层的特征包括热带的潮湿空气缓慢流向高层大气时出现的种种区别，也包括雨滴变大的速度与云层形成所需要的湿度。

The animal is perched on top of rocks bearing the fossil impressions of raindrops that fell in south africa 2.7 billion years ago and that were used by researchers in the us to work out what the air pressure on earth was billions of years ago .

这只小动物栖息在数块石块的顶端，后者承载着27亿年前于南非落下的雨滴的化石印记，然后它们被美国的研究者拿去研究地球在数十亿年前的大气压。