可跟踪的

A comprehensive research has made in the application of elliptic curve based bilinear mapping in the group signature, security of bilinear mapping is established on the GAP group. Because the DDH problem is easy to solve in GAP, this fact results it is very difficult to design a bilinear mapping based group signature scheme which can satisfy anonymity and the tractability.

对基于椭圆曲线的双线性映射在群签名中的应用进行了深入的研究，由于双线性映射的安全性建立在GAP群上，而在GAP群上的DDH问题是容易求解的，这样导致在基于双线性映射的群签名方案设计中很难同时兼顾群签名的匿名性和可跟踪性。

And then, this dissertation proposed a secret sharing scheme of secure vector space based on quadratic residue.

利用特定条件下计算二次剩余的困难性，恢复秘密时验证各参与者提供的份额的有效性，也=肖清华二杜绝了恶意参与者欺诈的可能性；(2)在秘密共享一多重签名方面，本论文针对数字签名的可跟踪性，以及确认签名是否来自同一个参与者授权子集这两个问题，指出了秘密共享和多重签名各自存在的不足，在此基础上，把两者结合起来，并从门限秘密共享一多重签名、矢量空间秘密共享一多重签名两方面对秘密共享一多重签名技术进行探讨，把 Sunder一Kumar门限秘密共享一多重签名方案推广到更为广泛的矢量空间上，并独立地提出了一个双通道的安全矢量空间秘密共享一多重签名方案。

By introducing the regulable parameter ε, the transient quality of the system is improved. By regulating the parameter ε, the control precision and the energy consume are compromised logically. The simulation result proves the validity of the controller through experiment.

由于可调参数的引入，改善了系统跟踪的暂态性能，通过适当选取该参数，使系统的控制精度与能量消耗得到合理折衷；将所设计的控制器进行实例验证，仿真结果表明了控制器的有效性。

Up to 80 S-8 80mm air-to-surface rockets in four underwing B8V20A packs or 20 S-13 122mm rockets in four B-13L pods; or up to 12 9A4172 Vikhr-M (AT-12) tube-launched laser-guided ASMs with range of 8 to 10km capable of penetrating 900mm of reactive armour; or mix of both; Vikhr launched from trainable UPP-800 mounts, which can be depressed to -12°; single-barrel 30mm 2A42 gun on starboard side of fuselage, with up to 470 armour-piercing or high-explosive fragmentation rounds, can be depressed from +3° 30' to -37° in elevation and traversed from -2° 30' to +9° in azimuth hydraulically and is kept on target in azimuth by tracker which turns helicopter on its axis; two ammunition boxes in centre-fuselage.

高达80的S - 8八十零毫米空对空，表面火箭在四翼B8V20A包或20的S - 13 122毫米的4架B - 13L豆荚火箭，或最多12 9A4172龙卷风- M的（在- 12）管发射激光引导ASMs与8至10公里的穿透能力的反应装甲900毫米范围内，或两者；龙卷风从可训练UPP - 800推出混合装置，它可以抑制了右舷的机身侧面-12 °，单管30毫米2A42火炮，高达470穿甲弹或高爆子弹碎片，可以压低从3° 30'至-37 °，海拔从-2 ° 30'至9中的方位°液压和目标是保持走过由跟踪的直升机轮流在其轴线方位，两个中心，机身弹药箱。

Based on the analysis of the architecture and characteristics of the GEO/MEO TDRSS for China, two system schemes are given.

中文摘要：在分析了我国可采用的静止轨道和中轨道跟踪与数据中继卫星系统的系统结构和特点的基础上，给出了2 个系统方案。

Serendipity PHP Weblog System - PHP blog with all the common features (comments,track/pingbacks,RSS) plus cool extras:Click'n' blog admin,extensible event-driven plugin API,easy styling, multiuser,image management,static pregeneration and a nifty installer: unpack, open in browser!

这个PHP blog提供了常见的功能(评论、跟踪/pingback，RSS)，以及很酷的额外功能：点击式blog管理，可扩展的事件驱动的插件API，简单的风格，多用户，图片管理，静态表示和一个方便的安装器：解包，然后在浏览器中打开！

The function of 3dB fiber loop mirror in fine wavelength partition is studied. With this theory, a novel narrow linear band, dual-wavelength switchable Er-doped fiber laser is realized.2. An unpumped Er-doped fiber and broadband fiber Bragg grating with high reflectivity is served as an auto-tracking filter, where the space hole-burning effect appears when the laser signal travels and forms standing wave, thus the generation of multi-longitudinal-mode is suppressed. Then the high birefringence fiber loop mirror is introduced to act as comb-liked wavelength filter.

主要包括：1、发现3dB光纤环镜的精细波长分割作用，并利用这种分割机制，研制成功一种窄线宽、双波长可转换的掺铒光纤激光器。2、利用未受泵浦的掺铒光纤以及宽带高反射率的光纤布喇格光栅做自动跟踪滤波器，当穿行其中的激光信号构成驻波时，出现了空间烧孔效应，从而抑制了多纵模的产生，引入高双折射光纤环镜做梳状波长滤波器。

"From the observational point of view, differential tomography with active sources or multiplets, dense arrays of continuous GPS receivers and of borehole strain meters and tilt meters, and deep borehole observations in fault zones (for tracking the role of fluids directly), might be the key to success."

&从可观察的角度，带活化源或多重线的差分X线断层摄影术、密集排列的连续的GPS〔全球卫星定位系统〕接受仪，和钻洞应变仪和地倾仪，以及进行断层区域深孔钻洞观察〔以直接跟踪流体的作用〕，可能是导致成功的关键。&

There are a lot of public and private torrent tracker sites on the Internet that does not always open for free registration, but often features a lot of fast seeders, best downloadable contents and extreme fast download speed which may max out ADSL bandwidth limit.

有很多公共和私人洪流跟踪上网际网路的网站，这并不总是开放免费注册，但往往功能很多快速seeders ，最好的可下载的内容和极端快速的下载速度可能的最大的ADSL带宽的限制。

TongueTied integrates an optional work flow around a keyword to track changes to a translation and ensure the validity of that translation.

TongueTied集成了可选的关键字，周围的工作流程来跟踪变化的翻译，并确保该翻译的有效性。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。