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... for washing clothes and vegetables should be separated from drinking water, Xu Yin divided the water flow into two streams at the bottom of the ditch, one to the right and the other to the left, and poured them into two reservoirs respectively.
The reservoir must be dug deeper, and then a small drainage ditch shall be opened. In this way, the reservoir can not only hold water, prevent the water from running out too quickly, but also ensure running water.
"The reservoir for dom ...
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