我们知道,“两点之间线段最短”.学习了轴对称、平移以后,它的应用就更多了,可帮助我们解决一些看似比较难的问题.问题:如图1,在一条河的两侧有A、B两个村庄,现要在河边(河宽不计)建一个自来水场,使水场到两个村庄铺设管道最短.这个水场的位置怎么确定? We know that “the line between two points is the shortest”. After learning about axis symmetry and translation, its application is even more. It can help us to solve some seemingly difficult problems. Problem: Figure 1 There are two villages, A and B, on both sides of the river. Now we need to build a water supply at the riverside (the width of the river is not counted) so that the water can reach the two villages with the shortest pipeline. How can this location be determined?