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- overall pressure ratio 总压比
- 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。
- 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。
- 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。
- As the number of construction projects increase in western Lantau alongside the existing threats, it is difficult to predict what the overall pressure is on the Pink Dolphin population. 布莲诗博士称:因大屿山西面沿岸一带的建筑工程不断增加,对白海豚数量所造成的压力可谓无法估计。
- 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。
- 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。
- 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]
- 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;
- 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。
- 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。
- He tried to varnish over the truth with a lie. 他试图用谎言来掩盖真相。
- I've got the hump over what he said to me. 我已经对他所说的很不耐烦了。
- She threw a scarf over her shoulders. 她在肩上披上一块肩巾。
- The boat heeled over in a strong wind. 船在强风吹袭下倾侧了。
- They all cooed over the new baby. 他们对着新生婴儿爱抚地轻声细语。
- The dog kept a vigilant guard over the house. 这只狗警惕地守护着这所房屋。
- 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。