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It's a Central European style, and every city has it. There are many of the original Shanghai and Guangzhou.
1.Steps: Draw an arc as required, and then offset by the vertical distance between the two arcs. >>>More
American Standard is good, it is recommended to buy TOTO, which is more suitable for Asian people.
It's a good way, if you fertilize it, you can use compound fertilizer to have no other peculiar smells. You can search on Taobao to find out that there are many fruit and vegetable package seeds, fertilizer tools and everything you can buy at one time.
This is an approximation where the chord length of the arc part is approximately equal to the diameter + arc height. >>>More
Horizontal is length a, vertical is width b, maximum width b1, minimum width b2 >>>More