When these ice pellets fall, some of them strike much smaller ice crystals in the center of the cloud.

当这些冰粒下落时，其中一些会撞到云团中心的更小的冰晶。

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Then updraft wind currents carry the light, positively charged ice crystals up to the top of the cloud.

然后上升气流将轻盈的、带正电荷的冰晶带到云的顶部。

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During this re-organization, the ice crystals realign in a way that allows them to slide pass each other.

在这个重组的过程中，冰晶会重新排列成允许它们相互移动的形式。

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Clouds with extremely cool water are mixed with man-made ice crystals, such as silver iodide and metaldehyde crystals.

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Ice crystals form on the leaf surface.

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When melting snow crystals or raindrops fall through very cold air, they freeze to form small particles of ice,called sleet.

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Mr Fridge uses a video camera to shoot the ice crystals growing in his freezer.

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So if water is detected in the plume, it will have to have come from vaporised ice crystals.

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The cellulose from the linters is also found in cheaper brands of ice cream, where it is used to improve texture and reduce ice crystals.

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