Scientists do not know exactly how this process prevents ice crystal formation.

科学家们还不清楚这个过程是如何阻止冰晶形成的。

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A third process by which salinity may be altered is associated with the formation and melting of sea ice.

第三个可以变更盐度的过程与海洋中冰的形成和融化有关。

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The main process of ice formation is the metamorphism from melting-refreezing of the seasonally accumulated snow, therefore there exists a broad belt of superimposed ice.

冰川积累区的成冰，主要是当年积雪以融化-再冻结为主要变质成冰作用，平衡线以上附加冰带宽阔；

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The researchers say they need to understand exactly how the ice gets on to the grains and evaporates from them again so that they can simulate the process of star formation with computers.

BBC: University of Nottingham