查询词典 concave

Utricles convex abaxially, plane or slightly concave adaxially; rostra 1/8-1/5 length of kernel; seed adherent to pericarp; leaves and bracts acute but not acicular at apex.

胞果凸背面，正面的平面或者稍凹；喙1/8-1/5段珠心；种子附着于果皮；叶和苞片锐尖但不是针状的在先端。 16 Corispermum 虫实属

Fruit a utricle, compressed, oblong to orbicular in outline, abaxially convex, adaxially plane or slightly concave, margin usually winged, entire or erose, plane or crisped, apex emarginate or rounded to acute, beaked; beak with a 2-fid tip formed from style bases; pericarp adnate to seed.

果一胞果，压扁，长圆形到圆形轮廓，背面凸，凹的平面或稍的正面，具喙由花柱基部的具一2裂的端部；果皮贴生于种子。

The system consists of a multi-reflection spherical cavity and is suitable for different kinds of specimen,such as concave mirrors,convex mirrors and plane mirrors.

通过积分球和补偿电路，大大地降低了对机械部件的加工要求和激光强度不稳给测量带来的影响。

The local heat transfer coefficients on the concace, convex and plane wall of a duct have a mild difference, with the heat transfer coefficent of concave surface being the largest and that of the convex surface the lowerest.

同一通道中凸、凹表面的局部换热系数有一定程度的差别。凸面的换热优于平面，后者又大于凹面。

The shapes of the melting solid surface may be concave, convex or plane, while the perimeter of plane contact regions may be rectangular, circular, elliptical, parabolic and arc curve. The types of relative motion reviewed here are the movement of a solid PCM melting inside a heated capsule, the movement of a hot body through a melting solid medium, slide contact and rolling contact. The contact melting may be caused by temperature difference, pressure difference, friction and viscous heating. Finally, the research regions in the future are summarized.

内容包括各种形式的接触熔化，可归纳为：在接触形状上可以有凹、凸与平的面，而接触的周长可以是矩形、圆形、椭圆形、抛物线形与弧形曲线；相对运动的类型有固体相变材料在加热容器内熔化，加热体通过熔化固体介质的运动，滑动接触与滚、转动接触；引起接触熔化的原因有温差、压力差、摩擦与粘性热。

Two flat lateral zones 12, parallel to the plane of symmetry X, each of which located near one end of the concave central area 11

两个平的横向区域12，平行于对称面X，各个横向区域12位于靠近凹入中心区域11一端的地方

Point P'' is the intersection point of the concave area 11 with the cross-sectional plane of symmetry Y parallel to the reference axes y and z.

点P，为凹入区域11与平行于参考轴y和z的横截对称面Y的交点。

Numerical simulation results show that the typical features of primary flow, secondary flow and velocity redistribution in natural river bends are closely related to the special planform and flow depth conditions of natural river meanders. The lateral redistribution of flow is significant when water depth is small. The main stream approaches the concave bank upstream the bend vertex when river width is small.

数值试验结果表明，自然河流河弯中的主流、二次环流和流速重分布特征是与自然河弯的特殊几何形态特征、水深条件紧密相连的，水深越小则流速沿横向的重分布越为显著；河宽越小则水流动力轴线在凹岸的顶冲点越为提前。

In order to suppress the heat effect of blue laser using plano concave cavity when working ,use Thermal Energy Converter to cont rol the temperature of gain medium Nd : YAG crystal and SHG LBO crystal.

为了解决平凹腔蓝光固体激光器晶体在工作中因热效应问题产生的影响，针对激光的增益介质Nd：YAG晶体和用以倍频的LBO晶体，采用半导体制冷器准确控制其工作时的温度。

PMMA compound X-ray lenses are composed of a group of 40 plano-concave elementary lenses positioned in line with axial symmetry.

用LIGA技术中的软 X射线光刻方法制作了PMMA材料 X射线组合透镜。

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。