可压缩流动的基本特征: k The pivotal aspect of high-speed flow is that the density is a variable一一密度是变量 k Another pivotal aspect of high-speed compressible flow is energy.Ahgh- speed flow is a high energy flow.-一是一个高 能量的流动 k Energy transformation and temperature changes are important considerations.一一必须考虑能量转换与温度变化可压缩流动的基本特征: ＊The pivotal aspect of high -speed flow is that the density is a variable－－密度是变量． ＊Another pivotal aspect of high-speed compressible flow is energy. A high-speed flow is a high energy flow.－－是一个高 能量的流动． ＊Energy transformation and temperature changes are important considerations.－－必须考虑能量转换与温度变化．