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- 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。
- overall adiabatic efficiency 总绝热效率
- The highest adiabatic efficiency is increased by 7 4% and the stability operation margin also has a notable increase. 最高绝热效率提高了7.;4 个百分点;稳定工作裕度也有了显著的增加
- The optimized rotor can evidently enhance the adiabatic efficiency and has fine off-design performance. 优化后叶片绝热效率有较大程度的提高，并且具有良好的变工况性能。
- The highest adiabatic efficiency is increased by 7.4%and the stability operation margin also has a notable increase. 最高绝热效率提高了7.;4个百分点，稳定工作裕度也有了显著的增加。
- The hot temperature difference and adiabatic efficiency increased by increasing cold air fraction,but cold temperature difference decreased. 冷流比增加;涡流板制热效应和绝热效率增加;而制冷效应下降.
- Calculation results illustrate that decreasing the blade hub-to-shroud loading level can increase the impeller adiabatic efficiency, and that aft-loaded impeller can obtain higher impeller adiabatic efficiency. 计算结果表明，在一定范围内，降低叶片轮缘－轮毂方向的负荷可以提高叶轮效率，后加载方式可以改善离心压气机叶轮性能。
- The relevant calculations and experiments also indicate that in order to increase greatly the refrigeratory ability,the conventional turbine refrigerator shall be redesigned and reproduced so as to improve adiabatic efficiency of the turbine. 计算和试验进一步指出,为提高制冷能力,应对常规涡轮制冷器重新设计、制作,以提高涡轮的绝热效率。
- 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。
- There's been an overall improvement recently. 近来各方面都有所改进。
- She worried over her father's health. 她为父亲的健康担忧。
- The brook warbled over its rocky bed. 小溪潺潺流过多石的河床。
- The overall situation is worsening. 整体形势在日益恶化。
- The shop assistant was wearing a white overall. 那店员穿著白色长罩衣。
- I fell off my bike and went arse over tit. 我跌下自行车，一头号栽到地上。
