像距

Venus is the easiest planet to identify since it is, after the Sun and the Moon, the brightest object in the sky; it is a brilliant yellow-white in color and can be observed even in daylight.

其颜色呈鲜明的黄白色，即便是在白天也能看到。从地球上观察时，我们发现，金星像月球一样有一个新月期：距地球最远时，它看起米非常小；当它靠近地球时，它就会变大。

Kennewick man is a mystery because, although ancient (he is dated to 9,300 years ago), he does not look like a modern Amerindian.

肯纳威克人是几年前在华盛顿肯纳威克附近发现的人类骨架，距今九千三百多年，但他并不像是印第安人。

After analyzing and processing the grating reticle image collected by CCD, the mapping coefficient can be accurately calculated from grid size to pixels. Comparing the fore-and-aft two grating reticle images after the worktable moved. Adopting phase difference ratio arithmetic based on Lissajous figures,the phase difference of two images will be figured out. The displacement of the worktable can be further calculated by the mapping coefficient.

调整光路使CCD获取清晰的光栅图像，对图像进行分析处理，计算出栅距与像素之间的映射关系，再对工作台移动前后的光栅图像进行对比，采用基于李萨如图的相位差比率算法获取它们的像素位置差，从而计算出工作台的实际运行位移。

A bottom margin of 6 pixel and a left margin of 8 pixel.

为6像素和8像素的左边距底部边缘。

This method supplies the steady edge data to the fused edge.(5) Feature vector, which includes sign of edge, central angle and the distance from chord to the circle center, is served as the role of feature association.

s在亚像素条件下，将边缘符号、圆心角和弦心距作为特征关联要素，建立了不同光学影像之间的边缘特征关联和融合定位模型。

By means of image theory and potential superposition principle,this paper presents the analytic solution of water cresting height and lateral distance from wellbore under steady flow,and optimizes the optimum wellbore placement.

该文利用镜像反映和势的叠加原理，给出底水油藏水平井稳定渗流情况下不同时刻和临界条件下底水脊进高度和水脊面距井轴的侧向距离的解析解，同时结合矿场实例给出实际优化水平井最佳井筒位置，其结果和方法对底水油藏水平井油藏工程设计和理论研究具有一定的指导意义。

In 2 other patients, the stalk was nonvisualized in both axial and coronal sections. Of those 31 patients whose stalks well demonstrated in axial section, their stalks located more than 2 mm in front of the dorsum sella in 18 patients (58.1%) while it was close to the dorsum sella in 13 patients (41.9%). In tradition, the infundibulum sign was applied only in coronal section, but we suggest that this sign can also be fit in axial section.

在轴状切面上可见脑下垂体柄之31例中，有18例(58.1%)其脑下垂体柄距鞍背超过2mm以上，余16例(41.9%)其脑下垂体柄则紧靠著鞍背，文献报告以电脑断层扫描诊断空蝶鞍所使用之脑下垂体柄跡像，泛指使用在冠状切面上，吾等认为此跡像亦可应用在轴状切面上，用以诊断空蝶鞍。

In addition, the software about optical image system and some functional enhancement have been briefly introduced. The changes of the planar and spatial practical image point and ideal image point have been discussed when the vision field angle, object distance and range of refractive index have changed. Some summarizations have been put forward. Some results have been deduced and given qualitative explain.

并简单的介绍了由光学成像算法实现的软件以及对该算法的一些功能的增强从视场角、物距和折射率变化幅度三个方面讨论其分别发生变化时在平面上和空间中实际像点与理想像点的偏差的变化情况，并总结其变化规律，对其中的部分规律进行了简单的推倒和定性的说明。

This causes that different field of view has different object distant,which results in heterogenic image motion vector on the film.

画幅相机由于横向视场较大，使得每幅横向各个视场目标对应物距各异，最终导致目标像相对探测器产生了异速像移。

Around 8pm the light was starting to fade. We were one pitch below Camp 5. Interestingly enough we heard lots of voices above us. I avoided having to lead the last pitch by getting the French party to throw down a rope that we could jumar up. Like the first night we were surprised how many folks were up and around this bivy. There was the French party. There was the Nose-in-2-days party and there was a Nose-in-hopefully-5-days party. There five of them in the last party and they had 3 or 4 huge haul sacks. There was one guy who must have been 275 pounds. He was the designated haul bag mule.

大概晚上八点，光线暗了下来，我们在第五营下一个绳距，有趣的是我们听到上面有很多声音，我不用先锋最后这个绳距，因为法国队抛下一条绳子，我们只要用犹玛上升即可，就像第一个晚上惊讶，好多人上到这个过夜处，有法国队，还有一个两天爬完Nose的队伍，还有一个希望在五天内能爬完Nose的队伍，最后这一队有五个人，三四个拖包，其中有个家伙大概有275磅重，他大概是专门拉拖包的吧。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了