应用层

Electric seal is a method to sign a document and it is a kind of electric signature, though a document has some difference compare to other kind of data like program, data of a database, according the speciality of a electric signature to a document, such as view what we signed , validate the signature in a document directly, how to archives a document which has been signed, how to read a document has been archived, it points out that a document is exactly some data with some format data, a document could be disparted as two parts, data and format data.

电子印章是应用层的数字签名，是电子签章的一种，由于文档签名与其他类型数据如程序，数据库数据等相比有其特殊性，本文针对文档签名的特殊性，如签名的可见与可证实性，文档的归档特性，文档阅读的方便性等进行了分析，指出文档实际上是一种格式化的数据，可以分为数据与格式两个部分，在此基础上提出了对文档进行签名的要求。

Through lucubrating the CAN protocol, establishs the application layer protocol of CAN aiming the Monitor System.

通过深入研究CAN协议，针对本系统完成了CAN应用层协议的制定；对本监测系统子模块的电路原理和功能进行了深入浅出的分析，完成了系统的各功能模块的试验。

That is, it monitors availability from the application layer perspective.

这就是，它可以监控提供从应用层的观点。

At last, thesis points out the further research direction, which is the switch technology of telnet etc application layer network services.

第四，论文最后指出进一步研究方向是telnet之类的应用层网络服务的切换技术研究。

With respect to this bit character, look on the applied level of Internet, perhaps can appear before long such picture: Although your friend and you are absent same a gregarious website, you also can share picture, each other to send mail; to be in same on screen, you can search the cafe around, read a magazine, with far it is OK to study in Indian work in the same placing you return; of form of a piece of electron together Wu of kimono of aleatoric network address is added on the screen that measuring a body to have something made to order for you.

就这点而言，在互联网的应用层面上看，也许不久就会出现这样的画面：即使你的朋友和你不在同一个社交网站，你们也可以分享图片、互发邮件；在同一个屏幕上，你可以搜索附近的咖啡馆、读杂志、与远在印度的同事一起研究一张电子表格；你还可以在为你量身定做的屏幕上添加任意网址和服务。杨致远走了，我们应该向他致敬。同时我们也看到，变化即将开始。

The base is a combination of alphas applied in Projection Master and hand sculpting with the Standard and Layer brushes.

该基地是在投影硕士和手与标准和应用层刷雕刻阿尔法组合。

The baselevel of the system is transparent for user; it is realized in Application Layer.

该系统底层对用户是透明的，系统在应用层实现。

At first This paper formulates the necessity for depurating network information content,and introduces the history of information security and study point in information security.Also this paper analyses in detail the key technology of content filtering such as data frame capture,bridge, network protocol analysis and content analysis.And then this paper comes up with the solution for content filtering facing application layer which is based on the technology of protocol analysis and format conversion in combination with text filtering techonology of Multiple Patterns Matching..Also this paper amplifies on the design and the implement method of each module.Finally this paper introduces how the client of content filtering system manages the keywords and log and makes suggestion for the improvement of the system.

本文首先阐述了对网络信息内容净化的必要性，介绍了信息安全的发展过程以及当前信息安全方面的研究重点，详细分析了内容过滤的关键技术，如数据帧捕获、网桥、网络协议分析和内容分析等方面的技术，然后提出了在Windows2000下实现基于协议分析技术，结合多模式匹配的文本过滤技术，面向应用层的内容过滤解决方案，并给出了内容过滤引擎的详细设计以及各个模块的实现方法，最后介绍了内容过滤系统客户端对有害信息关键词和日志的管理以及对本系统改进的一些建议。

In either case, the high level protocol must be designed with NAT traversal in mind, and it does not work reliably across symmetric NATs or other poorly-behaved legacy NATs.

这样，应用层协议在设计的时候，必须考虑到可支持NAT穿透。但一些其他类型的NAT是无论如何也不能做穿透的。

With application level proxies, the process is similar, but now you need to rely on someone else to deliver the packager for you.

与应用层代理，过程也类似，但现在你必须要依赖别人把包装给你。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。