像距

Text.Here, the heading has a bottom margin of 20 pixels, and the paragraph has atop margin of 10 pixels.

在这里标头有一个20像素的下边距，段落有一个10像素的上边距。

Common Reflection Surface stack is a brand-new and special ZO imaging method, the theory of CRS stack stems from paraxial ray theory, the biggest difference between CRS stack and conventional ZO imaging method is that it consider a reflector R as a circular reflector segment Cr placed in the vinicity of reflector R, Cr can be seen as the second order approximation of the reflector. The CRS traveltime surface is the multi-coverage reflection response of the reflector mirror assigned to R.

共反射面元（CommonReflection Surface=CRS）叠加技术是一种全新的、特殊的零偏移距剖面成像方法，CRS迭加理论源于傍轴射线理论，它与普通的零偏移距剖面成像方法的最大区别是它认为地下反射层是由许多个小反射弧段互相叠合组成的，认为来自某反射点附近的一个邻域内的反射信息都可以对该反射点的成像作出贡献，因此对该反射点进行零偏移距成像时就应该聚焦更多的能量参与迭加。

For k≥1, an isometry φ between codes over Zsubscript P(superscript k+1 and codes over Z(subscript P^2) is introduced and used to give a generalization of the Gray map φ: Z(superscript n subscript 4)→F(superscript 2n subscript 2). Furthermore, by means of this isometry, the concept of negacyclic codes is extended to codes over the ring Zsubscript P(superscript k+1. A characterization of these codes in terms of their images under φ is given. It is also shown that the generalized Gray map image of the 1-P(superscript k-cyclic code is a distance-invariant quasi-cyclic code.

文章引入了Z下标 P(上标 k+1码和Z(下标 P^2)码之间的等距同构φ(k≥1)；利用φ把Gray映射φ：Z(上标 n 下标 4)→F(上标 2n 下标 2)推广为φ：；而且利用φ，负循环码概念被推广到Z下标 P(上标 k+1码，得到了1-P(上标 k-循环码；依据等距同构φ，给出了这些码的表示；也证明了1-P(上标 k-循环码在推广的Gray映射下的像是距离不变的准循环码。

The main products of Keyang Company include: Body surface beat to beat HPS detection instrument,Dental systems、Digital intra-oral camera and data processing system,electron Proctoscope and data processing system,all kinds of Electric-driven and manual hospital beds, Electric Home Care Bed, Hospital Necessary Accessories equipments and household nursing kits.

公司位于珠江三角洲腹地、中国医疗器械制造基地-----佛山市，其距广州18公里，距香港150公里，交通非常便利，主要产品：多导生理仪、牙科综合治疗机、口腔内窥镜及数像处理系统，电子直肠镜及数像处理系统，电动、手动医院病床、家居病床、医院配套医疗器械及家庭护理用品。

Most Egyptologists believe the Great Sphinx on the Giza plateau is about 4,500 years old.

大部分埃及历史学家认为坐落在吉萨高地的狮身人面像距今大概有4500年的历史。

In this article, we settle the image mosaic problem caused by the fore-and-aft shake of the lens, the transformation can approximatively be seen as an linear transformation.

本文解决由镜头的前后晃动造成像距的改变，从而导致拍摄图像有缩放情况下的匹配问题。这种缩放在镜头横向晃动较小时可认为是一种近似的线性变换。

In order to probe the relationships between wave equation offset domain common image gathers/angle domain common image gathers with migration velocity, we quantitatively derive the changes of ODCIGs and ADCIGs along with migration velocity on the assumption of uniform velocity medium with a horizontal reflector. We come to conclusion that ODCIGs are hyperbolas with half offset; on the contrary, they are ellipses. Combined with the results of depth focusing analysis, we find the apparent incident angles in ADCIGs are larger than the real incident angles when the migration velocity is larger than the true one and vice versa. With lower migration velocity, the residual moveout on ADCIGs is an ellipse with the tangent of apparent incident angle; otherwise, it's a hyperbola.

为了得到波动方程偏移距域共成像点道集和角度域共成像点道集与偏移速度的关系，在匀速单层水平反射情况下，对ODCIGs和ADCIGs随偏移速度的变化进行了定量的推导，得到偏移速度偏小时ODCIGs与半偏移距成双曲关系，反之成椭圆关系；结合深度聚焦分析，得到偏移速度偏大时ADCIGs中视入射角大于真入射角，反之，小于真入射角；在速度偏小时，ADCIGs上剩余时差与视入射角的正切值成椭圆关系，反之成双曲关系。

Suddenly, the distant sun has twisted, and the light has sparkled too. The captain, known as the "calm orient man", has been shocked at first but not screaming as other colleagues floating beside him. Then he catch the idea that the crystalloid does stand somewhere between them and the sun, the distance of it from them is a couple of miters and from the sun is 100,000,000 miles away.

突然，远方的太阳变形扭曲了，那永恒的光芒也变得闪烁不定，使他吃了一惊，但以&冷静的东方人&著称的他并没有像飘浮在旁边的十几名同事那样惊叫，他很快明白，那块晶体就在他们和太阳之间，距他们有十几米，距太阳有一亿公里。

The optical system of line constructive laser confocal scanning microscope is designed. The optical design software OSLO is used to design special infinite image distance half flat field objective as well as laser extender and collimating lens.

设计了线结构光共焦扫描显微成像光学系统，使用光学设计软件OSLO设计了专用的无限远像距半平场显微物镜和激光扩束准直镜。

We are a large number of tests, not only to screen the company has resolved the make-up thread, when the dots to enlarge the size of such issues as uneven, obviates theàcalculation, the trouble of hand-blown network things, but also through many times with the screen printing company communication, film output successfully resolved prior to screen printing Moire phenomenon, will allow your company's printing to further enhance the quality and efficiency.

我们通过大量试验，不仅给丝印公司解决了拼版有细线，放大时候网点大小不匀等问题，省却了计算像距、手工刮网点的麻烦事情，而且还通过多次与丝印公司沟通，成功地在菲林输出之前就解决了丝印龟纹现象，将使贵公司的印刷质量和效率进一步提高。

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