苏联科学家发明了一种保护水坝不受水浪冲击破坏的“气垫法”。他们把倒置在水中的若干大金属桶沿水坝(?)开。桶中的空气象弹簧一样随着水压增大而压缩,从而减小水面的波动。采用这种办法可以把水坝的振动减小到零,还可以使地震时大水库发生的“海啸”不致于冲毁水利工程。 Soviet scientists invented a “cushion method” to protect the dam from the impact of water and waves. They opened several large metal barrels inverted in the water along the dam (?). The air in the barrel compresses as the water pressure increases, just like a spring, reducing the fluctuations in the water surface. In this way, the dam’s vibration can be reduced to zero, and the “tsunami” of the large reservoirs during the earthquake will not be destroyed by the water conservancy project.