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For the safety of LAN and using firewall thriftily,the authors analyze the architecture of Netfilter in Linux2.4 kernel.Then the authors implement the firewall system based on embedded Linux OS,which has basic functions as Package Filtration,URL filtration,NAT and log.And,the firewall system integrates with DMZ which establishes a buffer zone between Internet and Intranet to make the Intranet safer,and connection tracking which maintains a table for connection track in order to get the more safer than package filtration.

为了构建安全可靠的网络，同时降低使用防火墙的成本，对Linux2.4内核防火墙结构Netfilter的实现机制进行了深入的研究和分析，并利用该机制设计实现了一个嵌入式Linux防火墙系统，该防火墙实现完善了包过滤、URL过滤、NAT和日志等防火墙基本功能，同时集成了非军事区，为Internet和Intranet之间建立了缓冲地带，以保证Intranet的安全。

Assuming chemical concentrations in water were relatively stable during sampling period, it is possible to estimate concentrations for most of chemicals with log K〓 larger than 3 by the measured concentrations in triolein.

根据平衡模式，SPMD技术、鱼样富集、沉积物吸附所得污染物浓度，三者之间应存在较好的相关关系。

Regarding the density data and acoustic data in logging material as restriction, it also establishes undrilled district log through model seismic inverse, then, calculates elastic constant of rocks, density constant of rocks and even the profile of the following three pressures (pore pressure, caving pressure, fracture pressure). In the end, this thesis can determine safe drilling mud density windows, provide reference for drilling design, guides safe drilling and decreases the occurrence of accident.

将测井资料中的密度数据或是声波数据作为约束条件，通过模型地震反演，构建待钻区域的测井曲线，从而可以用理论和处理手段上比较成熟的测井分析的方法，进行岩石弹性和强度参数的计算，计算地层的三个压力(孔隙压力、坍塌压力、破裂压力)剖面，最终确定安全钻井液密度窗口，为钻井设计提供参考，指导安全钻井，减少钻井事故。

Not many weeks had passed before Alan sat on a log and carolled forth a song, and, after that, he and Eleanor were often the guests of the outlaws, who, in their turn, came to look on Alan as in some way one of themselves, and often found their way to his hospitable home.

几星期过去，阿蓝坐在木头上，倾心唱一首歌，之后，他和依莲娜经常是亡命之徒的客人，在他们来说，来看阿蓝在某些方面就如自己的人，他们经常寻路到他好客的家。

To explore the existence and dynamic changes of the Golgi body-like structure in the log-phase and encysting trophozoites (6, 12, 18 hours) of Giardia lamblia, these trophozoites were stained with C6-NBD ceramide, a specific marker for Golgi body in eukaryotic cells, and then they were observed with fluorescence microscopy.

目的 探讨类高尔基体结构在蓝氏贾第鞭毛虫滋养体和成囊不同时段的存在情况及其动态变化机理。方法用可特异性标记真核细胞高尔基体的荧光染料C6-NBD神经酰胺，标记有活性的蓝氏贾第鞭毛虫滋养体及成囊6、12、18h虫体，并用荧光显微镜观察。

In this paper, the design method and implementation scheme of Log-Gabor filters are described in detail.

实验结果表明，所提出的算法能有效改善指纹图像的质量和提高指纹识别的可靠性。

In the lodge, there had been a log-burning stove in the bedroom, wallabies at the window and two young wild devils gambolling outside the restaurant.

旅馆的卧室里有一个烧柴的炉子，窗口有小袋鼠的装饰，餐厅门外还有两只蹦蹦跳跳的野生小袋獾。

In the lodge, there had been a log-burning stove in the bedroom, wallabies at the window and two young wild devils gambolling outside the restaurant.

它是25年前被世界遗产组织列入名录的138万公顷地区的一部分（占塔斯马尼亚岛的20%）。旅馆的卧室里有一个烧柴的炉子，窗口有小袋鼠的装饰，餐厅门外还有两只蹦蹦跳跳的野生小袋獾。

And the basic principles of coding and decoding of Turbo Codes are discussed, the MAP and Max-Log-MAP algorithms which are suitable for the Turbo Code are detailedly discussed. Then, because the interleaves technology has important influence in radio channel, the article provides the detailed scheme of implementation in WCDMA system. Besides providing a series of simulation illuminates the influence of interleave-length to the Turbo-code performance.

由于交织技术是为了抵抗无线信道的噪声以及衰落的影响而采取的时间分集技术，在WCDMA的编码过程中具有重要的作用，所以本文对交织技术在WCDMA系统中的应用也做了详细介绍，并且通过仿真说明了交织长度对Turbo码性能的影响。

They had paddled over to the Missouri shore on a log, at dusk on Saturday, landing five or six miles below the village; they had slept in the woods at the edge of the town till nearly daylight, and had then crept through back lanes and alleys and finished their sleep in the gallery of the church among a chaos of invalided benches.

星期六黄昏的时候，他们坐在一块大木头上，顺流而漂，漂到密苏里河的另一边，在离小镇下游五六英里的地方上了岸。他们在镇外的树林子里睡了一觉，醒来时，天已快亮。然后他们悄悄地穿过僻静的胡同和小巷，溜进教堂的长廊。那儿堆满了乱七八糟的破凳子。他们又接着睡，一觉睡到了大天亮。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。