concaver凹面体
concaveadj.凹的n.凹面;凹线;凹形
concave-down greenbelt下凹式绿地
concave perforated plate凹形多孔板
concave spherical mirror凹球面镜
concave mirror reflector凹面反光镜
concave-inward forming内凹成形
concave cylindrical lens凹柱镜片
concave roll straightener双曲线辊矫直机
concave slope in open pit深凹露天矿边坡
concave maximum principle凹极大值原理
concave-convex function凹凸函效