同心圆

Air Force map of Hiroshima, pre-bombing, circles drawn at 1,000 foot intervals radiating out from ground zero, the site directly under the explosion.

描述：美国空军的一张长岛地图，爆炸之前，从原爆点开始有1000英尺为间隔的同心圆。

It is concluded that the precision of these points is attenuated equidistantly as concentric circles. Its center is the weighted average of the coordinates of known points with the radius determined by the precision, the quantity and the distribution of known points. The precision of station points is almost independent of intersection angle, and the precision of known points is almost independent of station point. In some circumstance, the detail points may be more precise.

对测站精度、细部点精度分布规律进行了分析，结果表明：测站精度和细部点精度均呈同心圆向外衰减，圆中心在已知点的加权平均中心上，半径决定于已知点的精度、数量与分布；测站精度与测站的交会角几乎没有关系，细部点精度与测站的位置几乎无关，且可能高于测站精度。

At first this paper introduces a new method which is named as the concentric circles cutting method of drawing terrain characteristic line on the basis of contour vector data, and has made the program design and realized to this method.

本文首先介绍了一种基于等高线矢量数据提取地形特征线的新方法——同心圆剖切法，并对该方法进行了程序设计与实现。

Additional outdoor facilities will include: tennis, volleyball, squash, badminton, lawn bowls, boules, shooting, archery, croquet, mountain biking, and fishing nearby.

另外户外设施包括：网球、排球、壁球、羽毛球、草地滚球、同心圆，射击、射箭、门球、骑山地车、而附近捕鱼。

Although the application was developed in a field where conditions justified a bullhead squeeze down the existing completion tubing, well conditions in other fields may warrant the use of concentric or coil tubing to circulate the slurry to the perforations and then to squeeze the slurry into the zone.

虽然应用开发的一个领域条件有道理缘挤压下来完成现有油管，条件好，在其他领域可能需要使用同心圆线圈或油管分发泥浆向齿孔，然后挤压成浆区。

By the key element of optical system is the crystal of fluoride calcium the thickness of5mm, on which diamond tool substituted the concentric circles, which reflect and which focus the light, which falls into the outward flange 60- mm of objective.

由关键因素是光学系统的晶体氟化钙的厚度5毫米，其中金刚石工具取代的同心圆，反映并重点考虑，这属于外向法兰60 -毫米的目标。

When you stare at the center of a circle, it seems that there is something flowing in the painting.

法国艺术家以赛亚-勒维安特的画作《谜》常会让人产生一种错觉：盯着图片中的圆心时，仿佛画中的同心圆环中有物质在流动。

Continue to use the above command to make a round, enter the center of a circle points (-40,-30), respectively, enter the radius value of 8 and 16, draw another set of concentric circles.

4继续用如上的命令作圆，输入圆心点（－40，－30），分别输入半径值8和16，画出另一组同心圆。

By the array composed of many concentric circular ring array of broadband signal processing at up there is more advantage.

由同心圆阵组成的多圈圆形阵列在宽带信号处理上有更强的优势。

AIM: Many studies have been conducted to explore the mechanical performance of spike plate, in which the models of fracture are concentric comminution.

目的：国外已有分叉钢板的力学性能研究，但其运用的骨折模型为同心圆型粉碎骨折模型。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。