压缩

The effect of the feed seawater temperature, the heating steam temperature of NO.1 evaporator, the concentration ration, the steam extraction, the quantity and location of preheat flow, the form of TVC on performance of a distiller is discussed. Not only serial flow and parallel flow, but also system with and without TVC was compared.

利用求解结果，针对进口海水温度、第一效加热蒸汽温度、系统浓缩比、电厂抽汽参数、外界热源预热量以及预热位置、热压缩布置形式等参数对系统性能的影响进行了分析与比较，同时分别针对串联和并联流程、有热压缩和无热压缩的低温多效海水淡化系统方案进行分析。

ABSTRACT The technology of image compression gains more attention in information society; wavelet transform is one of research hotpots on i...

图像压缩技术在当前的信息化社会中得到越来越多的重视，而小波变换技术是目前图像压缩领域的一个研究热点，它是实现高效压缩的一个技术手段。

ABSTRACT The technology of image compression gains more attention in information society; wavelet transform is one of research hotpots on image compression field. It is a good technical realization method for high efficiency compression.

图像压缩技术在当前的信息化社会中得到越来越多的重视，而小波变换技术是目前图像压缩领域的一个研究热点，它是实现高效压缩的一个技术手段。

For 〓,especially,ordinary squeezing disappers,while other squeezings(k≥2)are still existent,whose degrees,although,are very weak.

特别地，当〓≤2.6，普通压缩消失，而其他压缩（k≥2）依然存在，尽管压缩程度很小。

Only oneA/D converter is needed to complete complex quadrature translation and digital downconversion, get in-phase component and quadrature component in digital field, and also,after intra-pulse compression is done, the signal-to-noise ratio is raised, and inter-pulsecompression is done in digital field, and finally, high range resolution profile is got.Two-step stretch processing method for MMW high-resolution RADAR is presented.

计算并优化了毫米波雷达中频信号带通采样的最佳采样频率，应用现有的集成电路技术实现对中频信号的直接采样、用一个A／D转换器在数字域完成复数正交变换，在数字域完成下变频、获得同相信号和正交相信号、完成对子脉冲的脉内压缩、完成对脉内压缩信号的第二次脉间压缩，从而获得高分辨一维距离像。

The main products include: 1, tensile strength, universal testing machine: microcomputer-controlled universal testing machine, economic-type universal testing machine, tensile testing machine micro-computer, electric / manual (Vertical / Horizontal / double pole / single pole) Rally Units, micro-computer plug test machine, spring tension and compression testing machine, etc.; Second, environmental testing machine series: constant temperature and humidity chamber, drying oven, large load-aging room, walk-in constant temperature and humidity test chamber , Thermal Shock Test Chamber, UV weathering tester, salt spray testing machine, aging chamber three, cartons, packaging, furniture testing machine series: microcomputer carton compression testing machine, the breakdown strength test machine, drop (single arm / arms) Test Units, Units microcomputer vibration test, vibration test Analog Motor Transport Units four, electrical equipment testing machine series: plug wire bending test machine, drum testing machine plugs, plug wire hoist swing test machine, plug-line static tensile testing machine, sudden pull test machine, power cord bending test machine, combustion testing machine, 90-degree peel strength testing machine, torsion testing machine wire, wire abrasion test machine, flexible wires and flexibility testing machine, wire print Kennedy fastness testing machine, measuring the rate of wire testing machine, fatigue test handset line stretching machine, plug test machine, torsion testing machine cold, temperature testing machine, wire thermostat ball pressure testing machine, hot wire tester, leakage from marks tester, wire short-circuit / open circuit / high pressure / low pressure / insulation / conduction / mispairing tester; Friday, computer, mobile phone tester series: Life expectancy axis testing machine, testing machine life clamshell mobile phone, key life testing machine, resistance friction test machine, fully automatic torque tester, mobile Units drop test, tape wear-resistant test machine, the mouse roller life test machine; six, rubber, plastic, tape testing machine series: wear test machine, folding / Wear-resistant test machine, winding machine, vertical / rebound test machine, the permanent distortion compression test machines, foam compression stress test machine, foam plastic repeated compression test machines, test material removed machine, plastic machine Determination of Melt Index , melting point tester, heat distortion temperature test trough, falling ball / drop down / DuPont impact test machine, to maintain constant temperature test tape machine, adhesive tape early bowls tester, hardness tester, peel strength testing machine; seven, footwear, leather , Testing Machine Series: friction test machine, add sulfur testing machine, conveyor-type Needle detector machine, friction dyeing fastness tester, testing machineDecoloration friction, standard light box, cold testing machine

主要产品包括：一、拉力强度、万能材料试验机：微机控制万能材料试验机、经济型万能材料试验机、微电脑拉力试验机、电动/手动（立式/卧式/双杆/单杆）拉力台、微电脑插拔力试验机、弹簧拉压试验机等；二、环境试验机系列：恒温恒湿试验箱、干燥箱、大型负载老化室、步入式恒温恒湿试验室、冷热冲击试验箱、UV耐候试验机、盐水喷雾试验机、老化试验箱三、纸箱、包装、家私试验机系列：微电脑纸箱抗压试验机、破裂强度试验机、跌落试验台、微电脑振动试验台、模拟汽车运输振动试验台四、电工器材试验机系列：插头引线弯折试验机、插头滚筒试验机、插头线吊重摆动试验机、插头线静态拉力试验机、突拉试验机、电源线折曲试验机、燃烧试验机、90度剥离强度试验机、电线扭转试验机、电线耐磨损试验机、可挠电线柔软度试验机、电线印刷体坚牢度试验机、线材测长率试验机、听筒线伸缩疲劳试验机、插拔力试验机、低温冷挠试验机、温升试验机、电线恒温球压试验机、灼热丝试验机、漏电起痕试验机、线材的短路/断路/高压/低压/绝缘/导通/误配测试仪；五、计算机、手机试验机系列：转轴寿命试验机、手机翻盖寿命试验机、按键寿命试验机、耐磨擦试验机、全自动扭力试验机、手机跌落试验台、纸带耐磨试验机、鼠标滚轴寿命试验机；六、橡胶、塑料、胶带试验机系列：磨耗试验机、耐折/耐磨试验机、曲折试验机、垂直/反跳弹性试验机、永久压缩歪度试验机、泡棉压缩应力试验机、发泡塑料反复压缩试验机、试料磨平机、塑料熔融指数测定机、融点测试机、热变形温度试验槽、落球/落垂/杜邦冲击试验机、恒温胶带保持力试验机、胶带初粘性滚球试验机、硬度计，剥离强度试验机；七、制鞋、皮革、试验机系列：磨擦试验机、加硫试验机、输送式检针机、磨擦染色坚牢度试验机、双锤磨擦脱色试验机、标准光源箱、耐寒试验机

Two different velocity potential functions corresponding respectively to the liquid above and below the damping spacer are assumed.

研究表明：在相同密度分布条件下，可压缩流体的界面扰动增长速率总是比相应的不可压缩流体的界面增长率大，其相对增长率D随扰动波长的增加而增大，也随两种介质的声速减少而增大，在长波和易压缩流体中，D值可达0.8以上。

MAIN OUTCOME MEASURES: Vertical and lateral strain values under different vertical compressions, mean torques under different torsion angels, and vertical strain under three-spot bending compression of different stress loading following 6, 10 and 14 screw fixation.

主要观察指标：6枚，10枚和14枚螺丝钉固定不同压缩力垂直压缩时竖直方向应变及侧方应变值，不同扭转角度扭转时平均扭矩及不同加载应力三点弯曲压缩竖直方向应变。

It is considered that pre-tension stress counteract the compression stress in welding zone generated by thermal expansion, consequently reduce the compression plastic deformation, and depress the tension stress in welding zone when cooling down, and accordingly minish the compression stresses far from the welding zone.

分析认为，预拉伸应力部分抵消了焊接区热膨胀产生的压缩应力，从而减小了压缩塑性变形，进而减小了冷却时焊接区域的拉伸应力水平，相应地远离焊缝区域的压缩应力也随之减小。

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明：(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺，所生产的Φ140mm和Φ125mm的大规格棒材，其低倍组织和机械性能均符合标准要求，该工艺是可行的；(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置，可以使加工变形渗透到铸坯的中心，这一点是实现小压缩比热连轧生产工艺的关键；(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用，但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区，为保证最终轧材良好的表面质量创造了有利的条件；(4)小压缩比热连轧生产与铸坯质量控制，热送过程控制以及轧后冷却控制密不可分。

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如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。