Hard glass resists scratching.

硬质玻璃抵抗刮伤。

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The microscopic reaction tubes of bacterium were prepared by using pure and hard glass tubes.

应用洁净硬质玻璃管制成细菌微量反应管。

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Marblesis a game in which small hard glass balls are rolled along the ground towards each other.

玻璃弹子球游戏是一种小而硬的玻璃球在地上互相攻击的游戏。

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Even from a distance, beneath the hard glass of the windshield, we could tell this was an exceptional animal.

NPR: 'Dog is My Co-Pilot'

While it's already being used in art galleries and inside cameras (as sensor covers), Nippon Electric Glass is pushing hard to get its invisible glass featured on mobile devices -- the selling point here is simply to achieve the effect of somewhere in between glossy glass and matte glass, so that you'd get the best color vibrancy with minimal reflection.

ENGADGET: Nippon Electric Glass demos liquid crystal lens and 'invisible glass' at CEATEC (video)

Have we pushed too hard for more glass?

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