The strengthening behavior of glass possessing permanent stress during ion exchange has been discussed.
本文讨论了具有淬冷应力的玻璃样品在离子交换过程中的增强行为。
However, over time constant visual stress may lead to a permanent reduction in distance vision.
然而，经常性的视疲劳会造成永久性的远视力下降。
However, over time constant visual stress may lead to a permanent reduction in distance vision.
然而，经常性的视疲劳会造成永久性的远视力下降。
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