2012年伦敦奥运圣火将在火炬内的三面锥体铝管内点燃，外层为花边网状结构，表面有八千个圆圈，代表八千名火炬手。
The Olympic Flame will burn from a curved triangular aluminium tube which has a lace-like mesh complete with 8, 000 holes - one to represent each torchbearer .
各化学母质流向滚动中的金属或塑料基片的表面，他们互相作用，形成一层纳米级微粒网状结构。
As chemical precursors stream onto the surface of a rolling metal or plastic substrate, they react with one another to form a network of nanoparticles.
卵：乳白色有光泽，表面有网状刻纹。
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