surface mann.护路工人(井上工人)surfacen.表面；外表；平面adj.表面的；肤浅的vt.在 ... 上加表层；使 ... 成平面vi.浮到水面；显露；在表面工作surface roughness length地表粗糙度surface outline equation表面轮廓方程surface-active monomer表面活性单体surface-water drainage地面排水surface partition method分区方法surface runoff detention延滞地表径流Surface shape measurment面形测量surface of second degree二次曲面Surface heat-exchanger表面换热器Surface structure design表面结构设计