片语
smooth convering surface光滑覆盖面
smooth level surface平坦水平表面
smooth tooth surface光滑面
smooth covering surface光滑覆盖曲面
even surface平面;偶数面;平滑面
smooth closed surface光滑闭曲面
smooth-surface concrete光面混凝土
smooth convex surface光滑曲面
smooth sea surface光滑面
smooth-surface explosion光面爆破