Reducing the defective index of the cast iron vane, the invention is also favorable for improving the fan efficiency.
降低了铸铁叶片的废品率，同时也有利于提高发风扇效率。
Tip load reduction prop fan blade design would be benefit to lowering the noise level as well as to the prop fan efficiency improvement.
桨扇叶尖区采用卸荷设计有利于降噪及提高效率。
Through the ID fan to make performance tests to compare the various options that the installation of ID fan motor inverter can increase fan efficiency and save a lot of power.
通过对吸风机作性能试验，比较各种可行方案，认为吸风机电机加装变频器可以提高风机效率，节省大量电能。
Another model, the "Oorja", developed by BP and the Indian Institute of Science, has an integrated battery-powered fan to direct air to wood pellets in the combustion chamber, improving efficiency.
另一个模型，“Oorja”，由BP和印度科学院开发，拥有一个内置的电池驱动风扇来使空气对准燃烧室内的木球，从而提高效能。
One way to increase the efficiency of a high-bypass jet engine is to turn the fan into an open rotor, a bit like returning to propellers, but using two rings of stubby counter-rotating blades.
提高高旁通飞机引擎的方法之一就是把风扇变成开放式旋翼，有点回归于螺旋桨的味道，但要使用两圈粗短的反旋桨叶。
Test result shows: this method can improve the accuracy and efficiency of fan trouble diagnosis.
试验结果表明：该方法可以有效提高风机故障诊断的精度和效率。
The economic operation of large boiler is directly affected by the leakage of air preheater and the working efficiency of suction fan.
风烟系统中空气预热器漏风和吸风机运行效率对于大型锅炉的经济运行有着直接影响。
To improve the efficiency and reduce the noise of the axial fan, Optimization is made for the pneumatically designing through Composite shape arithmetic.
为了提高轴流通风机的效率和降低噪音，用复合形法对轴流通风机的气动设计进行优化。
As 4ztl-1800 combine gain machine fan to incline tongue with straight tongue the influence for fan noise and efficiency study.
对4ztl- 1800联收机风机倾斜蜗舌和直蜗舌对风机噪声及效率的影响进行了实验研究。
This is directed against structure defect of mine old type tube - axial fan, make technique transform to combine practice, raises main fan running efficiency, receives notable economic benefits.
针对矿井老型号轴流式扇风机的结构缺陷，结合现场实际进行了技术改造，提高了主扇运动效率，收到了显著的经济效益。
Curved diffuser is an important auxiliary component of main fan installations of mine, whose performance directly influences the operating efficiency of the installations.
扩散弯道是矿井主要通风机装置的重要辅属装置，其性能的优劣直接影响通风机装置的运行效率。
The measurements show that the airfoil blade fan prevails over the plate one in the aspects of total pressure efficiency, stable operation range and high efficient operation range.
试验结果表明机翼型叶片在全压效率、稳定运行范围及高效运行范围比相应的板型叶片具有优越性；
About the supply voltage, frequency, capacity factor of the fan and motor, specification of coil pipe, kinds of humidifier, form and efficiency of air filter, caliber and direction of pipe and etc.
对风机及电动机的电源电压、频率、功率，盘管规格，加湿器种类，空气过滤器形式及效率，配管口径及方向等有要求时请注明；
Meanwhile, axial-flow fan has superiority in decreasing humidity, reducing ventilation cost and increasing ventilation efficiency and so on.
轴流风机通风降温在减少水分丢失、降低通风费用、提高通风效率等方面更能体现其优越性。
The design principles of engine cooling fans are meeting the cooling demands of a engine, improving the efficiency of fans and reducing the fan noise.
发动机风扇的设计原则是在满足发动机冷却能力的前提下，提高风扇效率，降低风扇噪声。
Analyses the lowest rating hailer efficiency, the area of heat - supply service and the arrangement of forced draft fan and induced draft fan. The suggestions are advanced.
对节能标准中锅炉最低设计效率，最小供热面积和鼓引风机的配置进行了分析，并提出了建议。
The experiment on a model fan verified its feasibility and efficiency.
文中还通过一台模拟风机的试验证明了其可行性与有效性。
The experiment shows that the noise of the fan with inclining tongue is much lower than the fan with straight tongue, but the efficiency of the fan varies unobviously with the two kinds of tongue.
通过风机倾斜蜗舌降噪的试验和分析表明，倾斜蜗舌较直蜗舌降噪效果明显，同时对效率影响也不大。
In order to improve the efficiency and prolong the life of the fan, it is necessary to command the gas and solid two phase flow pattern master in the fan.
为了提高风机效率、延长风机寿命，所以掌握风机内部气、固两相流动规律是十分必要的。
CAD program package for the centrifugal fan of utility boiler has been developed in consideration of its low running efficiency, wearing and ash deposit.
针对目前许多电站锅炉风机运行效率不高，磨损与积灰严重的情况。
In large warehouse, a control test of lowering temperature with exhaust fan and other equipment in lowering temperature, ventilating efficiency, air flow rate and moisture content was carried out.
用排气扇与各种通风方式对高大平房仓进行降温对比试验，将试验仓与对比仓的降温情况、通风效率、表观风速和水分变化进行比较。
The loss model and the efficiency model of the axial-flow fan were established to optimize parameters and to estimate design rationality.
建立了轴流风机损失模型进行参数优化，根据轴流风机效率模型来判定设计参数的合理性。
This article analyses reasons of low efficiency of the original ID fan, and gives comparisons between two areas in costs as well as in energy saving.
本文对引风机效率低的原因进行分析，分析比较两种改造的节能效果。
MSI provides own design R5850 Cyclone with 9cm extra large fan to reach higher cooling efficiency.
微星提供了9厘米超大风扇自己设计的R5850气旋达到更高的冷却效率。
By experiment, for the effect of fan expending Angle to noise and efficiency study.
通过实验研究离心风机蜗壳扩张角对风机噪声及效率的影响。
Axial fan in the application of plant protection machinery more extensive, it has large air volume, high efficiency characteristics.
轴流风机在植保机械上应用较为广泛，它具有风量大、效率高的特点。
This paper introduces the advantages and real applications of BDK disrotatory high-efficiency axial fan.
介绍了BDK对旋高效轴流式风机的优点及其实际应用情况。
Experiment result shows, adopt to incline fan tongue for reduction corn combine gain machine fan noise, raising efficiency have very important meaning.
结果表明，采用倾斜蜗舌对降低谷物联合收获机风机噪声、提高效率有十分重要意义。
The research of the high-efficiency axial fan with skewed-swept rotating blades is given the basis of theory and testing in application of electric power system.
所研究的这种高效节能的弯掠动叶轴流风机为进一步在电力系统中应用提供了理论和试验基础。
Based on practical situations, the article introduces the influence of different type fan to gas instantaneous water heater combustion thermal efficiency when heat load changes.
文章从实际情况出发，介绍了燃气快速热水器在热负荷变化时使用不同类型的风机对燃烧热效率的影响。
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