p2 = Plot3D[senSU, {\[Theta], 2.5`, 3.8`}, {t, -1, 0}, PlotPoints -> 80, Mesh -> 15, PlotRange -> {0, 1}, PlotStyle -> {Opacity[0.6]}, MeshStyle -> Directive[ColorData["Atoms"]["P"], Thickness[0.003], Opacity[0.8]]]
想把图中灰色部分的区域变成透明状态，能够透视到下方图像，试了一下都不行，希望大佬们能指点指点，万分感谢
