大家好，小生来为大家讲解下。氨水是不是可溶性碱，氨水是不是电解质很多人还不知道，现在让我们一起来看看吧！
My problem is that I have an image of a detailed street map. On this map, there can be a certain small image of a sign (such as a traffic light icon) rotated at any angle, maybe resized. I have this s
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