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Summarize Available surface fresh water in nature, though, is only a tiny, tiny fraction of the earth’s total water supply. Is indeed the human society

Overview Changes in the earth’s environment are causing extreme weather more often than ever before. The possibility of flooding from heavy rains has also increased.

Background What is the value of parks? Of course, it provides more people to play and relax. But these days, there are so many things

Summarize The world is full of living beings. Water is the source of life, human life and life without water. Water is the source of

Overview The discharge of waste water from various factories undoubtedly exacerbates the deterioration of water quality. With the advent of water quality monitors, plans for

Background The areas with the worst water quality in China are mainly concentrated in the cities with large population density in the north. More than

Backdrop The hardness of water quality is a more popular view. The correct criterion is TDS in the water. This value can be measured with

Overview The ph level meter is also known as the aqueous pH tester. It is one of the intelligent online chemical analysis instruments. It is widely

Background The height of the liquid medium in the container is called the water level, and the meter that measures the liquid level is called

Background: With the gradual improvement and maturity of water quality monitoring technology. Water quality monitoring technology has become the focus of environmental protection management departments

Overview On every level, school is a relatively large unit of production and life. Hundreds or even thousands of students and teachers live in this

Summarize The quality of water used in cities is important. Directly affecting the health of the city’s inhabitants. Urban water quality monitoring system has always