Long time exposure to dust in densely populated regions, will naturally lead to cracks in case leakage into dust.

长时间暴露在灰尘密集的区域，自然会导致表壳缝隙中漏入入灰尘。

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In taking a master of embossing hologram, the movement of interference fringe will lower the quality of hologram during long time exposure.

在拍摄模压全息母版时，由于记录时间较长，那么干涉条纹随机漂移的影响将会变得十分严重，使全息图片质量下降。

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So can never wear Leather Watchband watch go swimming (or long time exposure to water, things) long-term sweat retting, can make the watch strap moldy taste.

所以绝对不能够戴着皮质表带的手表去游泳(或做长时间接触水的事情)，长期的汗水浸沤，还能使表带发霉变味。

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Doing this over long time periods can reduce your risk by reducing your exposure to whichever type of investment is nearing its top and even increase your returns.

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