In order to improve the fine structure inversion ability of igneous rocks for the exploration of underlying strata. based on particle swarm optimization (PSO). we have developed a method for seismic wave impedance inversion. Through numerical simulation. https://www.roneverhart.com/2013-2019-NISSAN-SENTRA-Engine-Lower-Air-Intake-Manifold-1-8L-154K-Miles-OEM/