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- Objective To explore the effect of push pull effect (PPE) simulated by lower body negative pressure (LBNP) rotating table, and observe the physiological responses to push pull maneuver. 目的探讨下体负压旋转床模拟航空推拉效应的效果,观察推拉动作对心血管功能的影响。
- Improvement of Low Pressure Cylinder made by Siemens Co. 西门子公司汽轮机低压缸的改造方法。
- The first stage is push pull forward converter, and the second stage is a dual buck inverter(DBI). 该静止变流器前级采用推挽正激式变换器,后级采用双降压式逆变器。
- AIM: To evaluate cardiovascular responses to push pull maneuver and the mechanisms of the push pull effect. 目的:评价推拉动作的心血管反应性及推拉效应的发生机制。
- Objective Push pull maneuver(PPM) was simulated using a tilt table to assess detailed cardiovascular responses and the simulation model. 目的建立倾斜床模拟推拉动作模型,并观察其引发的心血管反应性特点。
- Under developing four different modes of operation of the push pull zero voltage switching multiresonant converter (PP ZVS MRC), a complete DC analysis is presented. 将零电压开关多谐振技术应用于推挽变换器电路,提出了一种推挽式零电压开关多谐振高频变换器(PPZVS-MRC)电路方案,较全面、完整地对其稳态工作模式和直流特性进行了分析,发现了变换器正常运行的4种工作模式。
- Cause analysis of negative differential expansion of 330 MW steam turbine's high pressure cylinder in Mengda Power Generation Co.Ltd. 蒙达公司330 MW机组高压缸负胀差大的原因分析。
- Moreover, it has a whole page perfect push pull DC amplifier stream composition in circuitry, a modification of a nakedness property is aimed at, and the amount of NF is reduced. 此外,它有一个完美的整页拉推流直流放大器组成的电路,修改赤裸财产的目的是,和数额的NF降低。
- The paper introduces the analysis of 500MW steam turbine low pressure cylinder clapboard s cracks and introduces the way to settle it. 对某发电厂500MW汽轮机低压缸40级隔板中分面出现的裂纹进行了分析,并介绍了处理情况,确定了正确合理的补焊方案及工艺,供铸铁件补焊修复缺陷时参考。
- A high frequency link Push Pull Forward(PPF) type inverter is proposed in this paper,which have the advantages of the Push-Pull DC converter and the high pulse DC link inverter. 本文结合推挽正激直流变换器和高频脉冲直流环节逆变器的优点,提出了一种适用于低压大电流输入场合的推挽正激式高频环节逆变器。
- Should abandon western not the " with actual suit overtakes strategic " , executive push pull strategy, with tamp western the base that region economy expands. 西部应抛弃不切合实际的"赶超战略",实施推拉战略,以夯实西部区域经济发展的基础。
- It discusses the location and characteristics and causes for turbine low pressure cylinder,and suggests some measures of preventing &slowdown this corrasion. 对汽轮机低压缸腐蚀进行了论述,分析了低压缸腐蚀部位、特征及腐蚀机理,并提出了防止和减缓低压缸腐蚀的措施。
- A bi-directional DC-DC converter for high-low voltage convertion was presented which was based on current-fed push pull converter and full-bridge converter. 研究了一种适合高低压变换的双向DC/DC变换器,该变换器为电流型推挽变换器和全桥变换器组合而成的电流-电压型拓扑。
- In order to solve the problem of breaking of superhigh pressure cylinder,the Cutting Ring Method was used and a formula for calculating its strength is presented. 针对超高压缸的破坏问题,用切环法进行了强度分析,导出了进行强度计算的算式;
- The test of external pressure is studied for steel-walled pressure cylinder by using reliability method. The relation of external pressure test and influencing factor is analyzed. 应用可靠性设计方法,对钢制外压圆筒形容器压力试验进行了研究,定量分析试验压力与影响因素之间的关系。
- Push pull train? 推拉式列车?
- According to stability theory and design method of external pressure cylinder, the experience which can improve technology parameter by the way cutting open clamp ferrule to change effective length of external pressure cylinder is introduced. 介绍了根据外压容器稳定性理论和设计方法,通过剖分夹套而改变外压圆筒的计算长度,提高其技术参数的经验。
- Discusses the location and characteristics of and causes for turbine low pressure cylinder experienced at Harbin Thermal Power Plant and Suggests ways of eleminating corrosion of turbine low pressure cylinder. 对汽轮机低压缸腐蚀进行了论述,对低压缸腐蚀部位、特征及腐蚀机理进行了简要的探讨,并结合该厂实际情况进行了分析,提出了解决低压缸腐蚀的途径。
- You push from the back and I'll pull at the front. 你在後面推,我在前面拉。
- Diaphragm loose mechanical trouble of CO2 compressor high pressure cylinder is successfully diagnosed by using analysis theory.Practical effect of its diagnosing analysis is pointed out. 运用故障分析理论成功地诊断了CO2压缩机高压缸出现的隔板松动机械故障。指出其诊断分析的实用效果。