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- Because of using the geometric feature of rice kernels, the disconnection with the concave region identification is adaptive. 由于利用了米粒区域的几何特征来分离融合米粒区域，因此分离工作的自适应性强。
- Clean-up technology is a sufficient method for intersectant profile of surface and its concave region as well as shallow surface. 摘要在自由曲面数控加工中，补加工是解决曲面交线、曲面内凹区域及浅平面和陡斜面等加工的有效途径。
- When the classical parametric active contour model(Snake) is applied to segment the image, an initial contour must be set near the boundary of ROI and the model cannot segment deeply concave regions accurately. 传统的参数活动轮廓模型分割图像时，要求初始轮廓线设置在感兴趣区域的边界附近，曲线在变形过程中难以分割深度凹陷区域。
- His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
- An indented or concave surface or area. 凹陷，洼地凹的表面或地区
- Most insect do not live in polar region. 大多数的昆虫不在极地地区生存。
- The earthquake may cause a region to fall in. 地震可以使一个地区下陷。
- 7.Clean-up technology is a sufficient method for intersectant profile of surface and its concave region as well as shallow surface. 摘要在自由曲面数控加工中，补加工是解决曲面交线、曲面内凹区域及浅平面和陡斜面等加工的有效途径。
- Storms spring up easily in this region. 这个地区很容易发生风暴。
- He is earning a salary in the region of25,000. 他当时的薪金在25,000英镑左右。
- A storm that cut off power to the whole region. 切断了整个地区电力供应的暴风雨
- Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
- A planar region bounded by a circle. 圆形区，圆形空间被圆所包围的一个平面区域
- A vineyard or wine-producing region in France. 克鲁法国的葡萄园或葡萄酒生产区
- Food and fuel were scarce in this region. 这地区食物和燃料都很缺乏。
- There used to be a military base in the region. 这地区过去有个军事基地。
- He is an authority in the region of chemistry. 他是化学界的权威。
- I have a pain in the lumbar region. 我腰部疼痛。
- A concave molding with a cross section that approximates a quarter circle. 飞檐的凹圆线脚截面近于九十度弧的凹线脚
- There used to be a lot of troubles in that region. 那个地区过去动乱不已。
