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Firstly, the thesis introduces the technique of IPTV, video coding technique and the deblocking filtering technique.

本文对IPTV机顶盒的软件设计与实现以及去块滤波技术这两方面工作进行了研究。

The Tertiary reservoir in the vertical orientation develops three high porosity zones, every one firstly occurs in the sandstone of debouch bar and braided-divided flow channel, secondly occurs in the sandstone of raised bank and channel bar.

第三系储层在纵向上发育三个高孔带，各高孔带主要发育在沉积微相为河口坝、辫状分流河道的砂体中，其次发育在天然堤和心滩的砂体中。

Firstly, the concepts of dimensional element and dimensional element-chain are defined, and a geometric tolerancing model expressed by DE and its semantic mapping are also given. Secondly, the construction of DEC, the geometric measuring method for the calculation of error transfer coefficients of dimension-chain components and the realization of DECA are proposed.

首先定义尺素和尺素链等概念，并在此基础上建立尺寸公差的尺素表示模型及其语义映射；然后给出尺素链构造方法、计算误差传递系数的几何度量方法以及尺素链分析的实现方法。

The decadence of young offenders is always firstly caused by their families and then society.

少年犯的堕落首先是由他们的家庭造成的、然后才是由社会造成的。

Firstly, forging dies heat-force process is divided into alternate loop of decalescence process and heat-lossing process.

首先，将热锻模热力过程划分成吸热过程和散热过程的交替循环，并建立锻模的吸热模型和散热模型。

Firstly in this part the paper establishes three fibrin heat falling models: fibrin decalescence decomposition model; fibrin heat release decomposition model and burnt carbon heat release model.

论文第三章对在微重力环境下火焰传播进行了数值研究，建立了固体纤维素燃料热降解理论模型和火焰沿薄的纤维素固体表面传播理论模型。

Firstly, we defined a series of new concepts as the schemata containment, schemata competence, schemata intersection, and schemata dominance. Then, we defined the GA schema deceptiveness based on primary schemata competence, including complete schema deception, consistent schema deception, sequential schema deception, and basic schema deception.

4系统研究了GA欺骗问题，提出了模式包含、竞争与关联等概念，给出了基于主竞争关系的模式欺骗性与GA欺骗问题的严格定义，包括完全欺骗问题、一致欺骗问题、序列欺骗问题和基本欺骗问题。

Firstly, chaotic kinetic characteristic of Kent mapping is analyzed, using it to encrypt watermark image; Secondly, an algorithm of only modifying the decimal part of DC components is given, bringing the least error, effectively solving the problem which embedding watermark in DC components is easy to the image's block effect; Watermark is extracted without original image utilizing two-bits algorithm.

深入分析了帐篷映射的混沌动力学特性，并将其应用于水印图像的预处理；在分析了 DCT域嵌入对策的基础上提出了一种只修改 DC 分量小数部分的嵌入算法，引入的误差小，有效的解决了以往人们在 DC 分量嵌入水印容易引起图像块效应的问题；检测过程中利用二值离散算法使得水印提取时无需原始图像。

The geometry strategy of POD using carrier phase epoch-wise differency and P code is studied by the simulated data in order to achieve the decimeter accuracy level. The accessment method of POD results is also discussed. The contributions of this paper are as follows. Firstly, with the analysis of the CHAMP data, the space environment of LEOs and its influence is discussed.

本文主要工作如下：首先，结合CHAMP卫星实例数据，分析了低轨卫星所处的空间环境对GPS信号的影响，研究了6PS卫星星座和LEO卫星星座的摄动运动问题和星载GPS观测误差模型问题，建立了低轨卫星GPS测量信号仿真平台。

Firstly , we have obtained some basic characterizes of decomposable sets ,which are similar to those of convex sets.

首先文中给出了可分解集的一些基本性质，这些基本性质与凸集类似。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。