投影地

Timely, appropriate favourable geographical position is used umbriferous with telerecording, effect of education of geographical to rising classroom has profit greatly.

适时、适宜地利用投影和电视录像，对提高地理课堂教学效果大有益处。

Current, school of vast rural area teachs equipment to return diseased circumstance to fall in report, introduce umbriferous, telerecording classroom, break through the advantage of time, space, macroscopical, microcosmic limitation with its, emersion of visual image ground is objective thing, it is one of effective education measures of " of life of " press close to.

目前，广大农村学校在电教设备还不健全的情况下，把投影、电视录像引入课堂，用其突破时间、空间、宏观、微观限制的优势，直观形象地再现客观事物，是&贴近生活&的有效教学手段之一。

Relative to character, the Vikuiti SCP that 3M company rolls out exceeds it is OK to be apart from umbriferous technology nearly the clear result that achieves same size inside the distance of 75 centimeter, in the develop a school of one's own in numerous manufacturer, solved successfully a lot of before technical difficult problem.

相对而言，3M公司推出的 Vikuiti SCP 超近距投影技术则可以在75公分的距离内实现同样大小的清楚效果，在众多厂商中独树一帜，成功地解决了诸多以往的技术难题。

This method is tectonic on foundation of nuclear function theory special and linear space, each issue of rank nucleus of progression of the Volterra that seek solution changeover uses output observation vector to be in to beg Xierbaite the some in the space child the umbriferous problem on the space, make originally complex, hard calculative is nonlinear in the approachs a problem to be built in place compose linear space of Volterra progression of the system solve ably with the means that accumulates inside vector, gave out specific algorithm.

该方法在核函数理论基础上构造非凡线性空间，将求解Volterra级数的各阶核的新问题转换为求用输出观测向量在希尔伯特空间中某一子空间上的投影新问题，使原本复杂、难以计算的非线性系统的Volterra级数的逼近新问题在所构建的线性空间中巧妙地以向量内积的方式解决，并给出了具体算法。

The vision recognition is processed with two stages. In the first stage, a grid search scanning from top to bottom and left to right is processing to find an object point inside an unrecognizing object, then a precision analyzing and recognizing procedure based on object region projection is processing for determining the robots and football's position and also the robots' orientation in the second stage.

首先对于由CCD镜头所捕获的图像进行宏观位置跟踪，即自上而下、自左至右地进行网格搜索，获取目标物体内一点；然后从该点出发，利用区域投影，对目标物体精确定位，得到小球和各机器人的中心位置及各机器人的方位。

Once you have it on the ground, you can remove the projector from the cradle and change the lamp.

一旦你它在地面上，您可以删除投影从摇篮和改变灯。

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出，每个树种在树冠内相对高度上的叶量的垂直分布是不同的，天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小，约占10%左右；在树冠的中部以及中下部(0.4CL～0.8CL)，叶量所占比例最大，几乎集中了整个树冠60%～75%的叶量；而在树冠的下部(0.8CL以下)，几乎占很少的叶量，大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系，并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木，并不是传统意义上的全部竞争木；本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况，并采用等树冠投影面积法把树冠分为5级，这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想，用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型，设计了10个与林学意义相一致的约束条件，并采用0-1整数规划的思路，在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例，具体计算出了每株采伐木，经过择伐后，目标函数值按模型设计的要求发生了极大的改变，增加了5倍多，说明了最后这个解的优良性，满足了设计的要求。

On the small panel, Uccello arranged two portraits. The character and the horse have are in exact proportion, the front legs and the back legs of the horse are suitably foreshortened, even the shadow is extremely accurate, causing them to appear stiff and unnatural.

在小小的嵌板上，乌切洛游刃有余地安排了两组人像，人物和马匹比例准确，马匹的前后腿之间透视关系合理，连投影都经过了精心的计算，但也和乌切洛所有的作品一样，看上去僵硬有如玩偶。

Image reconstruction from the projections of fan-beam: The CT equipment is broadly adopted on the world that its detectors are arranged on the concentric circle at same angle interval. This equipment rebates the complex machinery movements like parallel-beam geometry, makes the sampling time shorter, that is rebating the whole CT testing time.

扇形束图象重建：将探测器等角间隔排列于同心圆周上采集射线投影数据，然后进行图象重建的CT装置是目前世界上广为使用的，它减少了平行射束采样方式的繁杂的机械运动，可有效地缩短数据采集时间，也就是减少了CT检测的总的花费时间。

Applying the concept of star dual, which is introduced by Moszynska, we establish some inequalities for star duals of intersection bodies. Hence, we present a new kind of duality between intersection bodies and projection bodies.

采用Moszynska引入的星对偶的概念，我们在第五章中研究相交体的星对偶体，从而更进一步地揭示了投影体和相交体两者之间的对偶关系；引入了对偶混合体的概念。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。