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Anonymous users2024-01-24Our school has a male toilet on the single floor and a women's toilet on the second floor.
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Anonymous users2024-01-23Separate men's and women's restrooms.
There are usually such pictures in the picture!
As shown in the experiment, when the coarse straw is placed over the thin straw and inserted vertically into the water and raised slightly, the coarse and thin straws form a special siphon, and the water continues to flow down the thin pipe. Flush toilets also make use of the principle of siphons.
The convex balcony is the outer wall, and the concave balcony is the opposite.
It is best not to use this method, because the drainage of the balcony is mainly to consider the rainwater, and the discharge of sewage is not considered, which can easily cause blockage on the ground floor, and will make you a beam to block the hemp and oak.
What's so embarrassing about this! High school is basically doored.