短語詞組短語rarefaction shock wave 稀疏沖擊波rarefaction wave velocities 追趕稀疏波速度rarefaction wave gun 膨脹波火炮rarefaction wave curve 激波與疏散波曲線rarefaction wave launch device 膨脹波發(fā)射裝置plane viscous rarefaction wave 平面粘性稀疏波reflective rarefaction wave 反射稀疏波planar rarefaction wave 平面稀疏波rarefaction wave solution 稀疏波解 返回 rarefaction wave