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The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

Nine super sweet corn inbred lines with abroad germplasm T1, T2, T3, M1, M2, M3, R1, R2, R3 were selected as tested lines, and original inbred lines B, C, D, 6, D2 as testing ones in this examination. 45 crosses were made by means of incomplete diallel method, and the genetic parameters of the groups and the combing ability of 10 traits, growth period, plant height, ear height, ear length, ear diameter, core diameter, baldhead length, rows per ear, kernels per row, single ear weight were tested and analyzed by means of NCⅡ design.

选用具有国外血缘的T1、T2、T3、M1、M2、M3、R1、R2和R3共9个超甜玉米自交系做被测系，以原有5个自交系B、C、D、6和D2做测验系，采用不完全双列杂交法组配出F1杂交组合45个，对生育期、株高、穗位高、穗长、穗粗、芯粗、秃尖长、穗行数、行粒数、单穗重10个性状按NCⅡ设计的原理和方法进行配合力测定与分析，并估算群体遗传参数。

Xixia, distant, gold, Yuan jade carving by flower, bird, tiger, Lu Heyu water decorative design in a utensil primarily, moreover and inlays many by the baldric.

西夏、辽、金、元玉器则以花、鸟、虎、鹿和鱼水纹饰为主，而且以佩饰和嵌件较多。

Barbwire is a tattoo design that first came out of prison culture, was adopted in Latino culture in Southern California, was then co-opted by modern tribal tattoo genre artists and then wildly popularized by Pamela Anderson!

这是一首纹身铁丝网设计出监狱文化通过拉丁美洲文化在南加州当时增选了现代艺术家和体裁然后疯狂纹身部落推广192安达！

Basing on this point,this article try to seek after the disciplinarian and method of creating thinking in art design by largely studying thoughts,psychology,vision and research how to inspire the capacity of thoughts and how to promote creativity by the convergence and radiation of thinking,abstract epitome and representational depiction,the transition of rational thinking and irrational thinking.

而设计的造型性又要求设计思维的艺术思维定向，任何一种单独的思维方式都不能解决设计问题。对于设计方法，我们应该认识这样一个原则：科学的设计方法与创造性思维是辨证统一，相辅相成的。科学的设计方法将有利于创造性思维的发挥；从而能提升创造能力；同时不断增长的创造能力又可促成更多方法的形成与不断成熟。

Offers of technical alternatives shall be accompanied by all information necessary for a complete evaluation, including design calculations, drawings, method statements and specifications for materials and workmanship where the alternative is not covered by the Specification, together with a breakdown of the alternative prices and the Total Alternative Contract Sum.

供选择的技术方案应伴有供全面评价的必要信息，包括设计计算、图纸、方法及原技术规范中未涉及的材料、工艺的规格，以及供选择方案的标价细目表和供选择方案的合同价格。

3 Offers of technical alternatives shall be accompanied by all information necessary for a complete evaluation, including design calculations, drawings, method statements and specifications for materials and workmanship where the alternative is not covered by the Specification, together with a breakdown

供选择的技术方案应伴有供全面评价的必要信息，包括设计计算、图纸、方法及原技术规范中未涉及的材料、工艺的规格，以及供选择方案的标价细目表和供选择方案的合同价格。

3 Offers of technical alternatives shall be accompanied by all information necessary for a complete evaluation, including design calculations, drawings, method statements a'nd specifications for materials a'nd workmanship where the alternative is not covered by the Specification, together with a breakdown of the alternative prices a'nd the Total Alternative Contract Sum.

供选择的技术方案应伴有供全面评价的必要信息，包括设计计算、图纸、方法及原技术规范中未涉及的材料、工艺的规格，以及供选择方案的标价细目表和供选择方案的合同价格。

Not only some economists' standpoint that the arrangement of the property rights is the nature of corporate governance, but also other economists' ones that they pay more attention to the design and enforcement of corporate governance mechanisms. The division hypothesis of corporate governance would conduceto comprehensive knowledge of corporate governance. Second, this thesis formalizes the ideas "the optimal shareholder structure of a firm is endogenously determined" proposed by Demsetz (1983) in a simple framework, which constitute the new rationale against the proposition "the more concentrated theshare, the more efficient the firm is" by Berle and means.

公司治理的分层假说将有助于我们形成对公司治理内涵全面的认识；（2）本文在一个简单的框架下形式化了Demsetz（1983）提出的最优股权结构内生决定的思想，为反驳Berle和means（1932）提出的"股权高度集中，企业的价值将最大"的命题提供了新的理论依据；（3）我们证明，公司治理机制的"整合"对降低投资者之间的利益冲突所导致的"第二类代理成本"具有重要作用。

A typeface (based on an 18th century design by Giambattista Bodoni) distinguished by regular shape and ''.

以规则的形状、细细的衬线和浓重的笔划为特征的字体（以18世纪g博多尼的设计为基础）。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。