The works show the transparent, opaque and translucent qualities of glass by the multi-layer structure of the cyclic permutations and combinations.

该作品通过多层环状结构排列组合，显现出玻璃的透明、半透明和不透明的特质。

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Such materials might include plastic or photovoltaic glass, which changes from transparent to opaque at the flick of a button.

ECONOMIST: Mies van der Rohe

It is also home to its own quirky toilets, with doors that flick from transparent to opaque, depending on whether the cubicle door is locked.

BBC: Why London��s loos have gone from gross to engrossing

In an amiably impersonal way, he is both transparent and opaque.

NEWYORKER: No Death, No Taxes