- 相关词组
- concave grating凹光栅;
- concave plane凹底刨，凹平面;
- concave edge（轧件的）凹边，凹面;
- concave weld凹焊缝;凹面焊;凹形焊缝;轻型焊;
- concave lens凹透镜;负透镜;
- concave slope凹坡;下凹形坡;
- concave curvature凹曲度;
- concave mirrorn.凹透镜;凹镜;
- concave bit凹形凿，凹形钻头;
- concave curve凹曲线;
- concave cutter凹半圆成形铣刀，凹半圆刃铣刀;
- concave convex凹凸;
- concave bottom凹板分组，凹底;
- concave bank凹岸，冲刷河岸;
- concave polygonn.凹多边形;
- concave tile凹瓦;
- concave saw凹面锯，蝶式圆锯;
- concave joint凹（圆接）缝;
- concave surface（叶片）凹面;
- coplanar grating共面线栅;
- 今日热词
- 热门搜索
- anniversary n.周年纪念日;adj.周年的;周年纪念的;年年的;每年的;
- you belong to me 你属于我;只属于我
- tory burch 托里·伯奇;
- reduction n.减少;降低;折扣;还原;缩图;
- organise v.组织;筹备 ;安排;组建;成立（NAmE=organize）;
- rough adj.粗糙的;粗略的;大致的;粗暴的;艰难的;恶劣的;粗野的;汹涌的;高低不平的;不舒服的;猛烈的;不平滑的;不确切的;犯罪盛行的;味道差的n.草图;草稿;暴徒;(高尔夫球场的)长草区;粗野的人
- ball n.球（状物）;舞会;v.做成球状;
- 5-htp 5-羟色胺;5羟色氨酸
- ample adj.足够的;充足的，丰富的;宽敞的，广大的;富裕的;
- exchange v.交换;交流;更换;n.交换;交谈;争吵;货币兑换;互访;交易大厅;
- The Outlaws 亡命之徒
- put away 收起来; 放好;储存;打消;
