Taw qhia rau quasi-P yoj
Quasi-P yoj (quasi-P yoj): seismic vuam tshuab hauv anisotropic tshaj tawm xov xwm, thaum lub kaum sab xis ntawm qhov xwm txheej ntawm qhov sib tshuam tsis yog xoom lossis 90 °, qhov kev co ntawm P yoj thiab SV yoj yog ua ke, thiab lub sijhawm no P Ob qho nthwv dej thiab SV nthwv dej muaj cov nplai thiab qhov sib txuas ntawm vector, uas sib txawv ntawm P wave ntshiab lossis ntshiab SV yoj hauv isotropic media, yog li lawv hu ua quasi-longitudinal wave thiab quasi-S-wave.