Terms for subject Oil / petroleum containing convex-convex

English	Chinese
concave-convex lens	凹凸透镜
convex cross bedding	凸形交错层理
convex cross-bedding	凸交错层理
convex curve	凸曲线
convex fuzzy set	凸模糊集
convex oil surface	凸油表面
convex profile	背弧型面
convex programming	凸规划
convex upward refractor	上凸折射层
convex system	凸系统
non-convex trap	非背斜圈闭