Acquiring this simple and non-polluting form of electric light,he points out, promotes education, public health,economic security and a cleaner environment.

VOA: standard.2009.12.13

The lipids will form a bi-layer where the water soluble part of the lipid points out of this layer and the oily part points in.

脂质会形成双层膜,水溶性部分朝向膜层外,而脂溶性的部分朝向双层膜内部

耶鲁公开课 - 生物医学工程探索课程节选