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The theory of wavelet transform algorithm and its application in data compression were firstly introduced.

因此，对数据进行有效的实时压缩具有重要的实际意义。

Firstly, they're up-to-date on the latest and most effective methods of data storage.

首先，他们是最新的最新的和最有效的方法，数据存储。

Firstly, a probability computing model is constructed to present system call sequences and the SCSFA algorithm is designed to predict the attempt of intrusion and to determine what need to protect, which is based on the analysis of system call sequence in virtual computing systems; Secondly, the sensitive data protected are divided into a number of film data, and for the goals of random errors tolerance, each tablet data are redundant backup based on Byzantine fault tolerance; Then, the redundant data are distributed to different virtual machines.

设计SCSFA算法分析虚拟计算环境的系统调用行为序列，以识别虚拟计算环境下的入侵企图，预测敏感数据的高危区域；其次，将要保护的数据划分成若干片数据，并以容忍虚拟计算环境随机错误为目标对每个片数据冗余备份；然后将冗余片数据分散到不同虚拟机上。

There are mainly 3×3 window module and auto-adapted threshold module used in the article. Firstly, we carry on processing to the CCD data-in, and judgment of spot scope. Then, we utilize the centroid algorithm to process the pixels which occupied on the spot, and obtain the spot position of miss distance.

文中主要采用3×3窗口模块和自适应阈值模块，先对CCD输入数据进行处理，判断光斑的范围，然后再运用光斑的质心算法对光斑所占的像元进行运算，得出光斑位置的脱靶量，最后用VGA格式将图像显示在LCD上。

An initial surface is determinated firstly, which is used as the datum plane to parameterize the discrete boundary points, and then an object function is established by the control points of B-spline surface.

它在车身造型，飞机制造和其他工业产品的设计中都有广泛的应用，如构建工业设计用的由复杂边界构成的曲面或是填补型心和型腔造型的零件中的孔洞等。

Firstly,the illuminance distribution similarity of the model and ante type is validated with theoretical and simulating study,based on which the office model is established.Then,daylight factor is put forward to substitute illuminance for experimental analysis.

天然采光不但可以减少照明用电，还可以营造一个动态的室内环境，形成比人工照明系统更为健康和兴奋的工作环境，开拓视野，放松神经，有益于室内人员身体和身心健康[1]。

Firstly, as the theoretical basis for DCC, the stiffness characteristics of DCC parallel mechanism is investigated.

首先，作为实现直接柔顺控制的基础，研究了空间任意自由度并联机构的刚度特性。

The dissertation firstly studies the deoxidizing mechanism of the deaerator and sets up a mathematic model based on conservation of mass and conservation of energy.

为改善除氧系统所存在的鲁棒性差等缺点，提高系统的稳定性，本文对智能控制技术及其在除氧系统中的应用及相关技术进行了研究。

Firstly, low death rate is the most significant factors contributing to this issue.

首先，低死亡率是重要的原因。

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 witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。