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- The two stage turbocharging system has much higher efficiency under most operating conditions if the pressure ratio assignment is 1:1. 在大部分工况下压比分配为1:1时，所匹配的二级增压系统效率较高；
- Testing Study on Two Stage Turbocharging System Pressure Ratio Assignment 二级增压系统压比分配试验研究
- pressure ratio assignment 压比分配
- The doctor is measured with mercuric tonometer, when the hematic pressure ratio of Ms.Wen sees a doctor last even tall. 医生用水银血压计一量，温女士的血压比上次看病的时候还要高。
- Another method to increase the pressure ratio prec/p is to increase the temperature and Mach number of the eject gas. 提高引射气体的温度及马赫数，也可增加扩压比。
- The correlation coefficient between plama ADH and urine-palsma osmotic pressure ratio was 0.86(P<0.05) in patients with DI. DI组确诊后一周内平均尿血渗透压值与血浆抗利尿激素水平有密切相关性 (相关系数r=0 86 ;P <0 0 5 )。
- Simone G,Roman MJ,Koren Mi,et al.Stroke volum/pulse pressure ratio and cardiovascular risk in arterial hypertension[ J ].Hypertension,1999,33:800-805. 蔡俊明;邓健忠;陈先辉.;社区干预对高血压患者卫生行为和疗效作用[J]
- Velocity circulations at the trailing edges of each blade-row are optimized for overall maximization of total pressure ratio and isentropic efficiency. 优化目标为总压比和绝热效率最大，决策变量为转子和静子叶排尾缘速度环量。
- The shock wave compression is the latest compression technology, and attracts special attention because of high single stage pressure ratio. 激波压缩技术是目前新式的气体压缩技术，以其高的单级压比倍受关注。
- A multiobjective optimization for a two-stage axial-flow compressor design was performed for maximization of the overall adiabatic efficiency and the total pressure ratio. 针对一台两级轴流压气机,选定优化设计的目标是最大的总压比和最高的总绝热效率。
- At the end of the annular passage,shock wave occurs when the relative lift is less than 6% and the pressure ratio is less than 0.7,which causes a greater total pressure loss. 在相对升程小于6%25、压比小于0.;7后;环形通道的末端将产生激波;激波带来较大的全压损失
- Flow characters of large flow quantity, internal leakage, external leakage and pressure ratio and all the influence volume efficiency of three leaves roots blowers are discussed. 摘要介绍大流量三叶罗茨风机的流量特性，内泄漏、外泄露、压力比对容积效率的影响。
- To satisfy the eccentricity requirements, a method to calculate the rational and economical size of two-dimensional eccentrically loaded foudations is presented based on the limit of the foundation pressure ratio of maximum to minimum. 本文按照满足基底最小压力与最大压力比值限值的条件,推导出了双向偏心受压基础底面尺寸的计算公式,可直接求得通过对基底最小压力与最大压力比值限制来减小基础倾斜情况下的经济合理的底面尺寸。
- Objective To investigate the significance of urine-plasma osmotic pressure ratio and urine-plasma sodium concentration ratio in diabetes insipiclus(DI) and cerebral salt wasting syndrome(CSW) in traumatic brain injury. 目的 通过前瞻性的临床研究 ,探讨尿 -血渗透压比值和尿 -血钠浓度比值监测对脑外伤后尿崩综合征 (DI)和脑盐耗综合征 (CSW )的意义。
- The computational results show that the thrust-vectoring angle is dependent on the freestream Mach number, nozzle pressure ratio(NPR), the position of the injection and secondary pressure ratio(SPR). 对时间的积分采用的是隐式近似因子分解法。 文中计算了外流马赫数、喷管压强比、次流总压与主流总压之比以及次流喷口位于不同位置时的矢量偏角的产生情况。
- After acoustic power output of the thermoacoustic engine was measured accurately by variable-load method,the mutual relations of power output with pressure ratio,heating power and heating temperature were analyzed. 应用变负载法;对该热声发动机的声功输出进行了精确测量.;分析得到声功输出与热声发动机压比、加热功率和加热温度之间的相互影响关系
- Abstract: Design ideas of supersonic transverse free-vortex aerodynamic window(ADW) were discussed, and the reason of a single-stage ADW not easily reaching high sealing pressure ratio was analyzed. 摘 要： 介绍了横向超音速自由旋气动窗口设计方法，分析了单级气动窗口难以实现大密封压比的原因。
- Titanium nitride films were grown by unbalanced magnetron sputtering at different N2 and Ar partial pressure ratios on Ti6Al4V alloy substrate. 采用非平衡磁控溅射技术,在钛合金(Ti6Al4V)表面沉积氮化钛薄膜。 通过改变氮气和氩气分压比(PN/PAr)和基体偏压,制备出不同结构、性能的氮化钛薄膜。
- A series of 1-D consolidation tests were carried out for soft clay with different over pressure ratios (OPR) and different preloading durations. 摘要通过不同超载比、不同作用时间的一维固结试验，研究软土在超载作用过程的变形机理。
- In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a critical pressure ratio for a given nozzle and a nozzle-to-plate distance. 发现对于给定的喷嘴和冲击距离,存在一个压比临界点,当压比高于此临界点值时,流场振荡和离散频率噪声被显著抑制乃至消失。
