concave shape

1. A hollow concave shape made by removing something.
   移动某物而形成的洞或凹陷。
2. The end of the handle forms a concave arc shape, and forms a tongue surface shape.
   所述的手柄末端为凹弧形，并呈舌面状。
3. The oil injection hole is a concave channel shape or planar oil injection hole which is arranged on the side surface of the motor shaft.
   注油孔为设在电机轴侧面的凹槽形或平面形注油孔。
4. A concave shape in a surface or edge or coastline etc..
   在表面或边缘或在海岸线上的凹陷形状。
5. An edge length ratio based algorithm for complex shape tracing using irregular point is proposed, which can adaptively trace boundary with concave shape and hole.
   提出了一种基于三角形边长比约束的离散点边界追踪算法，实现了对带洞凹多边形边界的有效追踪。
6. In order to facilitate the preparation of the main processing parts concave shape, the punch process.
   为了便于加工编制了主要成型零件凹、凸模的加工工艺。
7. It is a sloping green valley, concave in shape, its upper rim coming in direct contact with a series of enormously high cliffs that rise almost vertically.
   这是一处倾斜的绿色山谷，呈凹形，山谷上缘直接连接连绵的、不可攀、乎垂直的悬崖。
8. A concave shape micromachined variable capacitor was presented which has high Q and wide tuning ranges.
   提出了一种高Q值、宽调节范围的凹型结构微机械可变电容。
9. It also provides a extension mold, with convex and concave mold are of the same shape with high end and low end and at least one boss at the surrounding area of the low end.
   另外，本发明还提供一种拉延模具，其中凸模和凹模的形状一致且包括高端部分和低端部分，在低端部分的边缘区域上具有至少一个凸台。
10. A concave shape with an open top. UPPER LIFTGATE OPENING TRIM
    顶上有开口的凹形物。上部升降闸门开口装饰
11. A concave shape with an open top.
    顶上有开口的凹形物。
12. Based on a wave-sediment physical model of the concave seawall coast stretch on the Abandoned Huanghe River Mouth, formation process of the stable bay during the variation of coast nature, origin of coarsened sediments, characters of the bay shape and so on were studied.
    通过废黄河口凹入岸段波浪泥沙物理模型试验，研究海岸性质变异中稳定岬湾的形成、粗颗粒泥沙来源、岬湾岸线形态等特征；
13. This paper emphases on experimental investigations on springback in typical forming operations such as convex edge flanging, concave edge flanging, "U" shape component forming, and "V" shape component forming.
    本文重点开展了凸弧翻边、凹弧翻边、V型件冲压、U型件冲压等典型冲压工序的回弹试验研究。
14. Observed from the simulation, the plan view pattern of after single pass rolling presented convex end shape and concave side shape, continue to simulate the effect of the plate rolling conditions on the plan view pattern was obtained.
    模拟结果表示单道次轧制后轧件的平面形状呈现头部凸形和边部凹形形状，并在此基础上进一步模拟不同轧制条件对轧后轧件平面形状的影响。
15. The calculating results showed that the optimized geometry of soldering fillet is a concave shape in which the extruding length of the soldering fillet is a little more than the gap height.
    计算结果表明，钎缝圆角的最佳几何形状为钎缝伸出长度略大于钎缝高度的凹型。
16. To study growth and remove of concave, U and V shape crack defect using the method simulating transversal crack with test and FEM analysis in the course of multi-pass drawing stainless steel wire rod.
    在多道次拉拔不锈钢线材过程中，用模拟表面横裂的方法，通过试验和FEM分析，研究凹形、U形、V形裂纹缺陷的生长和消除。
17. By means of wind tunnel simulation, characteristics of wind loading on membrane cantilever structures of concave and convex shape are studied corresponding to Zhaoyuan and Dazhou Stadium in China.
    以分别具有下凹和上凸形状膜结构罩篷的山东招远和四川达州体育场为例，通过风洞试验模拟的方法对比研究了这两种体育场罩篷的风荷载特性。
18. When concave shape transversal crack exists on the surface of steel wire rod, defects become overlap shape and stay because flank of defect is forced shear deformation and caves inside the defect even after multi-pass drawing;
    当线材表面存在凹形横裂缺陷时，即使经多次拉拔，也会因缺陷侧面承受剪切变形而产生向缺陷内的塌陷，从而使缺陷变成折叠形状而残存下来；
19. Submerged Vortex Generators of Concave Shape for Separation Control
    凹型面埋入式涡流发生器控制分离流
20. The slope shapes of the most of the drainage basins are concave, but the whole shape of the transitional region of Qinling mountains and Huang-Huai Plain is roughly straight line.
    各流域坡面形状多为下凹形为主，但山地整体的坡面形状近于直线形。
21. The typical structures of concave microlenses in quartz and silicon fabricated are concave sphere crown shape, concave cylinder, and square-top concave shape.
    所制硅及石英凹微透镜的典型基本图形分别为凹球冠形、凹柱形和矩顶凹面形。
22. The research result showed that: With the increase of distance from shield tunnel central axis, the initial excess pore water pressure decreased in a concave curve shape.
    分析表明：随着离隧道中心的径向距离增加，土体各点的初始超孔隙水压力呈凹曲线衰减。研究了隧道埋深、盾构直径对土体初始超孔隙水压力的影响。
23. The abrasive particles move faster toward the center in the case of larger ultrasonic amplitude or bigger abrasive particles, resulting in concave bottom shape of micro hole.
    振幅越大或者磨粒粒径越大，磨粒向中心聚集的速度越快，导致微孔底面出现凹陷状。
24. By guiding the packet routing inside and outside the hole, the new routing method empowers the convex fault tolerant routing algorithm to tolerate concave shape regions without disabling any healthy nodes.
    利用洞，通过设计合理的规则引导分组在洞内外路由，可以使现有的凸型故障容错路由算法能够容忍凹型故障区域，不需要将正常结点标记为故障。
25. This kind of landslides mainly distributes in the linear-shaped bank slope, and secondly, in convex and Ladder-shaped bank slope. The concave shape at the present stage is relatively stable, so the landslide hazards are infrequent.
    该类滑坡主要分布在直线形岸坡内，其次多分布于凸形岸坡和阶梯形岸坡中，凹形岸坡在现阶段相对比较稳定，滑坡灾害较少。
26. In fluid mechanics, if the fluid surface is designed to concave shape, then as pressure, will produce Rayleigh-Taylor Instability, and the occurrence of jet phenomena.
    在流体力学中，如果流体表面的形状被设计成凹形，那么由于压力的作用，就会产生瑞利-泰勒不稳定性，并且发生射流现象。
27. Based on this design was obtained relatively concave and convex shape of two new outside the pipe.
    在此基础上设计了截面相对内凹和外凸状两种新型传热管。
28. When the tail has concave or convex shape, the flow lines shrink rapidly, while the tail has an ellipse shape, the flow lines shrink slowly.
    竖井尾部形状为内凹或外凸时，流线收缩较快，竖井尾部形状为椭圆时，流线收缩缓慢。

noun

1. a shape that curves or bends inward

   Synonym:    concavityincurvationincurvature