调色师是一种看到自然中的一种色彩，就能立即做出色彩分析的人，他们能说出，例如：那种灰绿是黄色加上黑色和蓝色，等等。
The colorist is the person who knows at once how to analyze a color, when it sees it in nature, and can say, for instance: that green-grey is yellow with black and blue, etc.
一些云分析师正在考虑使用事实情况：不同于放射性尘埃，火山灰可在远处被观测到，从而做出更好的结论。
Some cloud modellers are considering using the fact that ash, unlike fallout, can be seen from afar to make better calculations.
他们搜集了火山灰的样本用来分析，看其中的化学物质是否和上次爆发的相似。
They've collected samples of the ash to analyze to get a sense of whether the chemistry is similar to the last eruption.
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