folium of Descartes

例句：

1. 1. The fabric is made from cotton folium.
   这件衣物是用棉纤维制成的。
2. 2.The scientist found a new way to use filament for energy production.
   科学家发现了一种使用细丝生产能源的新方法。
3. 3.The filament was so thin that it could not support its own weight.
   这种细丝太薄，无法支撑自己的重量。