恢复系统

By using canonic signed digit to represent each coefficient of FIR filter and local search method to optimize the coefficients, we implement a multiplier-less FIR filter.

利用卫星数字电视广播系统中接收信号的频谱特性，提出一种基于离散傅立叶变换的载波恢复算法。

The protocol provides "Catechetical Mechanism" and "Captain ID Mechanism" to ensure credible order and self-relive of the system and dynamic captain change.

该协议提供&队长ID机制&和&应答机制&，实现队长的动态变更并保证可靠的命令下达与系统自恢复。

Species richness and Pielou evenness index were used to measure species diversity. Species richness in polluted area was 32-67, while in control area it was 47-82. Pielou evenness index of tree layer was 0.1161-0.8509, while those of shrub layer and herb layer were 0.1763-0.3249 and 0.0443-0.2601, respectively. The results showed that both species richness and Pielou evenness index were influenced by the point source pollution. Species importance values showed significant differences between polluted area and control area. Dominance of different species had changed, and some species even disappeared under the pressure of pollution, indicating a process of species replacement in plant communities. Such species replacement can provide a scientific basis for species selection for restoration of human-damaged ecosystem. The natural regeneration of Quercus variabilis was insensitive to pollution, while Cupressus funebris was effected seriously.

仅在污染区中出现的物种数量远低于仅在对照区中出现的物种数量；(2)可分出4种基本的群落类型：马尾松林、柏木林、栓皮栎林和马尾松＋栓皮栎林，各群落特定层次的物种丰富度指数以及Pielou均匀度指数在污染区与对照区之间存在显著差异；(3)污染胁迫下，物种在群落中的生态优势度发生了变化，反映了群落中不同物种相互替代的过程，这种物种的替代可为今后受损生态系统人为恢复过程中物种的筛选提供一定的理论参考；(4)对群落中王要物种更新的调查发现：栓皮栎林对污染不敏感；柏木林污染区与对照区幼苗数量及分布格局均有明显差异，污染条件下群落未来演替受到严重干扰。

During the mounting, the compinents unfurl them to retrieve circularity. The thesis will elaborate the programming method in how to use NUM System′N/C Center to machine and have process analyses on them with high precision on condition that the big locating hole and the 3-25H7 cylindriform ...

在没有将变形的定位大孔及3-25H7圆柱定位销孔分布圆恢复成圆形的情况下，在NUM系统的加工中心加工，对其进行的工艺分析和保证高加工精度的编程方法。

Such Adjuster-indwelt children and youths follow the parent of most advanced spiritual status, thus going to the system finaliter world on the third day, at a special resurrection, or at the regular millennial and dispensational roll calls.

此类调停者存在的孩子们和青年们追随着非常高级灵性状态的父母，因而在第三天进入finaliter世界的系统，在灵性上恢复中，或者在固定的的一千年和分配滚动调用中。

Finally, general requirements on thyristor reverse recovery charge dispersity dictated by valve design at giving system conditions are proposed.

最后，得出在系统条件一定的情况下，阀设计时对所选用晶闸管的反向恢复电荷分散性的一般要求。

At last, based on the theory of healthy ecology system, in order to achieve the duple objects maximizing output and minimizing runoff and wind erosion, the strategy of reconstructing should adjusting measures to local conditions and developing reasonably for optimizing the land use in the North Foot Region of Yinshan Mountain.

最后，根据以上的试验结果，结合当地实际，基于生态系统健康，提出为实现收益最大化和水土流失、风蚀沙化最小化的双重目标，应因地制宜适度开发的生态恢复策略，以优化阴山北麓土地的利用。

Based on soil desertification between agriculture and husbandry interlace zone in north of Shannxi Province, on the basis of theories of landscape ecology、land resource and principle of soil genesic science, through field surveying data and indoor analyzing, the properties of soil physical, chemical and biological characteristics are systemic analyzed about desertification soil of different vegetation cover rate and type, achieving primary achievements and important evolves are as follows:Ⅰ.

本研究基于当前全球荒漠化危害现状及国内外荒漠化防治中恢复生态学的发展需要，以陕北农牧交错带土地荒漠化问题为研究对象，应用景观生态学理论、土地资源学和土壤发生学的基本原理，在野外考察、资料收集和室内测定分析的基础上，对不同植被盖度和植被类型荒漠化土地的土壤理化性质和生物学性质进行系统分析，取得的主要成果如下： 1。

C. electric parameters measurement. The means and conditions to reestablish the signal without distortion are also given. At last, this paper discusses the theoretical basis for power, RMS and harmonics phase measurements of power system directly from the Harr wavelet matrix transform data associated with each sampling voltage and current element pair.

本文针对电力系统特点，分析了非均匀采样的数字频谱结构及非均匀采样周期信号的数字谱表达式，并讨论了非均匀采样对交流电量参数测量的影响，给出了非均匀采样无失真恢复信号的方法和条件。

Security Indolence Non-invasive and non-ablative RF with particular epidermis cooling system, which can make the epidermis to 1-5℃. No need hocus, no need convalescence, no influence for client's life.

优势聚焦 Advantage ◆安全无痛-非侵入、非手术性拉皮术，独有的表皮冷却系统，可预先将表皮冷却到1-5℃，无需麻醉，无需恢复期，不影响治疗者的正常生活作息。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐