Sewage nutrients do increase algal growth in the harbour.污水中的营养物确实会加快港口的海藻生长。Non-fat dairy products supply the needed nutrients without excessive calories.脱脂乳制品能提供身体所需的营养，而不含过多的热量。Nutrients from the digested food can be ...
宝丽来胶卷感光性非常强。Polaroid film is very sensitive.这片子已经感光.This film has been exposed.眼是复杂而且高度精密的感光器官.The eye is a complex and highly developed photosensitive organ....
这种点的集合被称为等位面.The set of points is called a level surface.表面本身是一等位面.The surface itself is an equipotential.在等位面与电力线的每个交点, 两者是垂直的.At each crossing of an equipotential and a field line, the two are perpendicular....