fresh water

n.

淡水，湖水；甜水；

freshwater ecology淡水生态学

Fresh-Water Invertebrates of the United States by Robert W. Pennak
Fresh-Water Invertebrates of the United States: Protozoa to Mollusca by Robert W. Pennak
Human Appropriation of Renewable Fresh Water
The role of sea ice and other fresh water in the Arctic circulation
Fresh Water and Ocean. (Book Reviews: Aquatic Chemistry. An Introduction Emphasizing Chemical Equilibria in Natural Waters)
Book Reviews: Fresh-Water Invertebrates of the United States
Biological invasions of fresh water: Empirical rules and assembly theory
Water in crisis: a guide to the world's fresh water resources.
Water in crisis : a guide to the world's fresh water resources
Increased salinization of fresh water in the northeastern United States