中文说明：此程序为瑞雷面波最小二乘反演程序，适合于初步接触瑞雷面波反演研究相关方面的人员。
English Description：
This program is the least square inversion program of Rayleigh surface wave, which is suitable for the personnel who have preliminary contact with the related aspects of Rayleigh surface wave inversion research.