除了水，羽状物中还包含一氧化碳，二氧化碳，氨，钠，水银和银。

Besides water, the plume also contained carbon monoxide, carbon dioxide, ammonia, sodium, mercury and silver.

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这些羽状物于是和更远的气体混合起来，同样也给它们加热。

These plumes then mix with other, more distant gas, and heat it up as well.

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根据以前的模型，电荷仅存在于火山灰羽状物的顶部和低端，那里时常发生华丽的闪电。

Models predicted that electrical charge should be limited to the top and bottom of any ash plume, which is often the site of spectacular lightning.

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