During the day the glass walls are almost invisible.

白天玻璃墙几乎看不见。

youdao

Glass and concrete in dynamic tension. The apparently fragile supports the heavy, and once again invisible forces are revealed.

动态张力中的玻璃和混凝土。显然是由脆弱支撑沉重，再次显现了不可见的力量。

youdao

It flew immediately to its perceived escape, the circle-topped window where it frantically tried to exit thru the invisible wall of closed glass.

它立即朝自己认为是出口的地方飞去，疯狂地想穿过圆顶窗上透明的密封玻璃逃出去。

youdao

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)

About 70% of women and 57% of men believe an invisible barrier--a glass ceiling--prevents women from getting ahead in business, according to a study of 1, 200 executives in eight countries, including the U.S., Australia, Austria and the Philippines.

FORBES: Are Women Happy Under The Glass Ceiling?

Perched on a ridgeline in the Hollywood Hills, its walls of glass allow for an almost-invisible union with the surrounding land and skies above.

FORBES: 8 Homes With Stunning Windows