详细解释:a. 一面凸一面凹的
【建】 凸凹的
英语解释：
形容词 convexo-concave:
convex on one side and concave on the other with the convexity being greater than the concavity详细解释：
con.vex.o-con.cave
adj.（形容词）Convex on one side and concave on the other.凸凹的：一面凸一面凹的Having greater curvature on the convex side than on the concave side. Used of a lens.凸凹的：凸面比凹面曲度更大的。用来指透镜