One of the more severe fluctuating pressure environments encountered in supersonic or hypersonic flows is the shock wave oscillation driven by interaction of a shock wave with boundary layer.
在超声速或高超声速绕流中，一种很严重的脉动压力环境是由激波边界层相互作用引起的激波振荡。
Mould oscillation plays an important role in the continuous casting. In recent years, the hydraulic oscillation is developed and has been widely applied as a driven equipment of mould oscillation.
结晶器振动在连铸生产中具有重要的作用，而液压振动是近年来被开发并逐渐推广应用的结晶器振动驱动方式。
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