📁 资源
Water "resources" are the waters that people use or might use for human consumption, industry, etc. Topics may include hydrology, water supply, water distribution, water quality, wastewater, flooding, surface water (rivers, streams, and lakes), groundwater, drinking water, and water treatment technology.
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条目 (8+)
How a Galileo Thermometer Works
https://science.howstuffworks.com/how-does-a-galileo-thermometer-work.htm
How I Feel about Fluoridation
http://www.quackwatch.org/03HealthPromotion/fluoridespock.html