If there's wood, we will use wood but the very special African woods with a very fine structure.

如有材，我们会使用材，但会用非常特殊非洲材，结构非常精。

The sponges don't need high temperatures to generate these fine structures.

海绵不需要高温来产生这些精结构。

It is a man-made composite material that changes the conventional properties of light and electromagnetic waves by designing and reorganizing the fine structure of the material.

是一种人造复合材料，通过设计和重组材料精结构，改变光和电磁波传统特性。

A big car will not feel the fine structure of the road, it will just roll along and will be, you know, just as fast as normal.

一辆大型车不会感觉到路面微结构，只会以正常速度碾压而过。

But not just any old pure carbon, pure carbon with a very fine microscopic lattice-like structure that actually turns out to be absolutely essential to the functioning of gunpowder.

但不仅仅是任何旧纯碳，具有非常精微观晶格状结构纯碳实际对火药功能是绝对必要。