射流扩散 meaning in Chinese

jet spreading

Chemical kinetical modeling of turbulent jet diffusion flame for methane air
空气湍流射流扩散火焰的化学动力学模拟
A new method for simulation of turbulent diffusion combustion : conditional moment closure model
用于模拟湍流射流扩散燃烧的条件矩模型
Experimental investigations on diffusion characteristics of high concentration jets in environmental currents
流动环境中高浓度射流扩散实验研究