In contrast, fruit juices and dried fruits are concentrated sources of natural sugar and therefore have a high energy density - more calories - and they don't fill you up as much.
相较而言，水果汁和干制水果是富含天然糖分，因此能量密度高，卡路里高，同时也不容易让人感到饱足。
2
Wind and solar generation tend to be distributed because of the low density of the natural energy they collect.
由于它们采集天然能源的地点非常分散，因此风能和太阳能的发电也呈现出分散状态。
3
Pattern density, which can make mature object-oriented frameworks hard to change, is a natural result of the way object-oriented developers design systems.