查询词典 concave

Thus, we propose a new depth function to deal with such concave shape data sets using the principal of smallest hypersphere in the Gaussian kernel feature space.

本文从样本深度的角度，利用高斯核特征空间最小球原理，提出了一种广义的数据深度。

Results (1) 6 cases of Tuberous Sclerosis. Diffused subependymal nodular calcification lesions were found in all cases on unenhenced CT. 4 patients are 2 pairs of mother/child relationship. Both of the two mothers are found to suffer from renal angiomyolipoma.(2)1 case of neurofibromatosis showed abnormal spinal canal: scoliosis of thoracic and lumbar spine, concave change of vertebral posterior border. Bilateral renal hypogenesis was found in this patient. Diffused hyper-density lesions were found in kidney and fatty accumulation was found in back skin.(3)6 cases of Sturge-Weber syndrome. On unenhenced CT, curving and strip-shaped calcifications were found along the parietal and occipital gyrus.

结果 ①结节性硬化6例，所有病例CT平扫见两侧脑室室管膜下多发小结节状高密度钙化灶，其中4例为两对母子关系，并见两位母亲合并有肾脏错构瘤，；②神经纤维瘤病1例，MRI表现为椎管异常，胸腰段脊柱侧弯，椎体后缘呈明显的切凹改变；伴有双肾发育不良，CT示肾内多个高密度影，背部皮肤多量脂肪堆积，③脑颜面血管瘤综合征6例， CT可见顶枕部沿脑回分布的弯曲的条状高密度钙化，部分延伸致侧脑室内，增强后见病灶内有扭曲的条状和结节状明显强化的血管影；④小脑血管瘤病4例，影像学表现为小脑内大囊、小结节样占位性病变。

Petals 3, concave, imbricate in bud.

花瓣3，凹，在芽中覆瓦状。

Concave shape, incurvation, incurvature

a。 凹凸的，一面凹一面凸

His argument, known as the Hockney-Falco thesis, is that great artists of the past, such as Ingres, Van Eyck, and Caravaggio did not work freehand, but were guided by optical devices, specifically an arrangement using a concave mirror to project real images.

在那部著述中，他暗示过去最伟大的艺术家们，譬如安格尔、范·爱克，和卡拉瓦乔不是空手工作的，而是采用了光学设备的导引，特别是采用一面凹镜的一种安排，用以投影实像。

Based on the analysis of the structure characteristics of the plastic product with inner concave loop slot and the mold design projects,an injection mold for this kind of part was designed.

在分析环槽形内侧凹塑件结构特点及模具设计方案的基础上，设计了此类塑件的注射模。

Considering the effect of load and helical angle on the instaneous width of contact area, this paper uses the BEM program for calculating the deformations at different place along the width of convex tooth and concave tooth of W-N gear and gets the relevant deformation curves.

并首次应用三维边界元方法，在计入齿面瞬时接触迹宽度随外载、螺旋角而变化的条件下，计算了双圆弧齿轮凸齿面端部和凹齿面端部的变形。

On the other hand,Raymond considered systemsgoverned by linear elliptic and parabolic differential equations with the integrand in costfunctional has to be concave in the state variable.

在那里，指标泛函中的被积函数关于状态变量必须是凹的。因而，那里所给的条件和Cesari条件是互不包含的。

It is considered that shaping the concave canopy structure by aitificial measures such as chemical control at intervals and belt-shape intercrop of tall and short cultivars can be an important way to further improve maize population yield.

研究认为，通过人为措施(如隔带化控和高矮品种带状间作)塑造凹形群体结构是进一步提高玉米群体生产力的重要途径。

Furthermore, it not only has better interpretability to the concave data sets than the existing depth functions, but also has a relative simple computation, which ensures its practicality.

相比现有数据深度而言，它对凹形结构的数据具有更好的深度解释。更为重要的是它的计算比较简单，从而保证了它的实用性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。