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1·Along the alley before nine to find the world's hotels, the right side of the wall have to join a ladder leading to the roof of the apron.

沿胡同前行找到九世界旅馆，右边的墙上有一道梯子通往屋顶的停机坪。

2·The test results show that the apron can reduce back flow at the dam toe, and the piers can obviously diminish river bed scouring near the scour resistant wall.

试验结果表明：护坦减轻了下游纵向围堰左侧坝趾处的回流淘刷，隔流墩明显减轻了防冲墙附近河床的冲刷，确保了坝基和下游纵向围堰的安全。