These larger ions take up more room and are pressed together when the glass cools, producing a layer of compressive stress on the surface of the glass.

这些钾离子占据更大的空间，当玻璃冷却下来的时候，钾离子便挤压在一起，从而在玻璃表面生产一层压应力层。

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While explaining stress management to an audience, the lecturer raised a glass of water and asked ’How heavy is this glass of water?

当向听众解释压力管理的时候，讲师拿起一杯水问道：这杯水有多重？

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While explaining stress management to an audience, the lecturer raised a glass of water and asked 'How heavy is this glass of water?'

当向听众解释压力管理的时候，讲师拿起一杯水问道：这杯水有多重？

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Convinced there might be a better solution I set out looking for a soft brush to do the dirty work and hopefully put less stress on the glass.

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