An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the sourceofillumination of subsurface scatterers.
本文提出用于地下成像无源地震方法的分析,在该方法中应用环境地震噪声作为地下散射体的照明源。
2
The main sourceofillumination is called the key light. The key light is frequently supplemented by subsidiary lighting. The chief sourceof light for outdoor shooting is sunlight.
主要光源称为主光。主光常常用辅光作补充。室外拍摄的主光为阳光。
3
LED light sources complying with these specifications are utilized as the sourceofillumination in lighting products that comply with the appropriate end-product standard as listed below.