查询词典 plane convex

If the convex surface of a lens is placed in contact with a plane glass plate, as in Fig. 41-9, a thin film of air is formed between the two surfaces.

如果一个凸面镜放置于平面玻璃的一个接触点上，如图41-9所示，在它们两者的表面形成一层空气薄膜。

Figure 41-10 is a photograph of Newton's rings formed by the air film between a convex and a plane surface.

如图41-10所示是一张由平凸透镜和平面镜所夹空气夹层所形成的牛顿环。

As early as 400 BC for many years, China's "Mojing" documented book on the forward line of light, light reflection, as well as the plane mirror, concave mirror, convex imaging phenomenon.

早在公元前四百多年，我国的《墨经》一书就详细记载了光的直线前进、光的反射，以及平面镜、凹面镜、凸面镜的成像现象。

One is concave whereas the other is convex and faces the longitudinal plane of symmetry X.

一个是凹入的，而另一个是凸起的，并面向纵向对称面X。

First, regarding with fabricating requirements, features were extracted from microstructures and categorized. According to the mechanism of SL, features were divided into those on the scanning plane and those in the building direction. As microstructures include convex or concavo, features were classified into entities and hollows.

首先，针对制作微结构特征的要求，进行微结构特征分类：根据光固化快速成形工艺的特点，将微结构特征系统的归纳为扫描平面内的和堆积方向上的；根据结构特征的凹凸特性，又将不同方向的微结构特征分成实体类和间隙类。

The problems of point - line - plane - volume; the facts of square - circle - triangle; the mysteries of central - peripheral - frontal - oblique - concave - convex; the right angle and perpendicular; of scale and position; the interest in post- lintel, wall-slab, vertical-horizontal; the arguments of two-dimensional and three-dimensional space; the extent of a limited field; the meaning of implied extension; the meaning of plan, of section, of spatial expansion - spatial contraction - spatial compression - spatial tension; the direction of regulating lines, of grids; the relationships of figure to ground, or number to proportion, of measurement to scale, of symmetry to asymmetry, of diamond to diagonal; the hidden forces, the ideas of configuration; the static, the dynamic: all these begin to take on the form of a vocabulary.

点-线-面-体的课题；正方形-圆形-三角形的事实；中央-边缘-正对-倾斜-凹入-凸出的奥秘；直角与垂直；尺度与位置；柱-梁、墙-板、竖直-水平的旨趣；两维与三维空间的思辩；局促场所的极限；暗示延伸的含意；平面、剖面、空间扩充-空间收缩-空间挤压-空间张拉的意义；控制线与网格的方向；图与底、数字与比例、尺寸与尺度、对称与非对称、菱形与对角线的关系；暗藏的力量、构型的想法；静态、动态━这一切都将发展成为语汇的形式。

A polyhedron any plane section of which is a convex polygon.

有些平面部分是凹型多边形的多面体。

Aim In a plane,we can get a location convex polygon with truncation incision method.

杨明目的在一个平面区域内，采用截断切？？

Sort-and-Incremental Algorithm Step 4: Intersections of adjacent h-plane pairs in stack form half a convex polygon.

相邻半平面的交点组成相邻半平面的交点组成半个凸多边形。半个凸多边形。

A method to decide whether a vertex on a plane is in a convex polygon or not is presented according to the sign of the third dimension element of cross product of two vect...

引入利用向量叉积符号判定三角形的方向，进而判别平面上一点是否在凸多边形内的方法，简化了计算。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。