concaver凹面体
concaveadj.凹的n.凹面;凹线;凹形
concave disk colter凹面圆犁刀
concave filled weld凹形角焊缝
concave circular saw凹面圆锯
concave solid cutter凹半圆刃整体铣刀
concave sucking disc吸盘状陷窝
concave ridging body短凹面起垄犁体
concave-convex die凸凹模
concaved glass slide带凹孔载物片
concave optical tool光学玻璃凹面磨具
concave minimization凹极小