而对于三维机翼来说，当奥斯瓦德有效因数等于1.0时，可认为有100%的前缘吸力。
A 3-d wing is considered to have 100% leading-edge suction when the Oswald efficiency factor (e) exactly equals 1.0.
这个内存扩展因数为操作系统提供了有关用户尝试实现的有效内存容量的输入，即OS应尝试纳入内存的数据量。
This memory expansion factor provides input to the operating system on the effective memory capacity the user is trying to achieve, and thus, the amount of data the OS should try to fit into memory.
稀土永磁同步电动机具有效率高、功率因数高的特点，是一种高效节能产品。
High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
提高牵引变电所(简称牵引变)功率因数以改善系统电压质量、减少系统损耗是改善电气化铁路电能质量的有效措施。
Increasing power factor of traction substation is the effective measure to improve power quality of electrified railway for better voltage quality and less loss.
此装置主要解决了补偿中的谐振问题，并使电力系统的功率因数提高到0 . 9以上，同时有效抑制了供电网的谐波。
The equipment solves mainly the resonance problem in compensation, makes power factor be more than 0.9, and restrains the harmonic in electrical network effectively.
有源功率因数校正技术(PFC)作为一种有效的谐波抑制方法，得到了广泛而深入地研究与应用。
As an effective way of eliminating high frequency harmonic, active Power Factor Correction (PFC) technology has been deeply researched and has broad application.
该量是标度因数离散程度的一个有效的量度。就这个量来说，也要求正态性假定。
For this quantity to be a meaningful measure of dispersion of the scale factors, the assumption of normality is again required.
在单位功率因数整流器中，利用瞬时值比较法来控制电源电流，不但控制简单，还可有效限制器件的最高开关频率。
The method of instantaneous value comparison for source current control of unity power factor rectifier possesses advantages of simplicity as well as valid restriction for maximum switching frequency.
提出了一种能有效地抑制由非同步采样引起的有功功率及功率因数的测量误差的加权算法。
A weighted algorithm is proposed for reducing effectively the error caused by non-synchronous sampling in active power and power factor measurement.
电机的恒功率因数控制是一种简单、有效的能量最优控制方法。
The constant power factor control is a simple and effective energy optimized control strategy.
通过支持向量机训练算法对基因表达数据进行分类训练，为分析基因数据提供有效的手段。
Through support vector machine algorithms for gene expression data classification training, SVMs provide a effective way for analysis of gene expression data.
仿真分析结果证明：该变换器拓扑结构能够使输入电流的包络随着收入电压变化，有效的实现了功率因数校正。
The simulation result proves: Used this converter's topology structure, the envelope curve of import electric current follows entering voltage change. And power factor correction has been realized.
为了满足实时检测要求，研究了计算电压、电流有效值和功率因数的快速演算法。
In order to satisfy the real - time measurement, we studied the fast arithmetic of virtual value of voltage and current, power factor.
它不仅有效地提高无功电流的补偿质量，改善了供电系统的功率因数，而且并联电容的成本和投切频率都很低。
It improves the quality reactive current compensation effectively and the power factor highly with lower capacitor costing and switching frequency.
功率因数校正技术是抑制谐波电流、提高功率因数的行之有效的方法，近年来受到了越来越多的关注。
Power factor correction technology is an effective method of restraining harmonic currents and increasing power factor, which has been attended more and more in recent years.
试验结果表明，本文提出的设计方法能有效地提高电网的功率因数，因此其具有广泛的应用前景。
The result of testing indicates that the design method can be used effectually to the improve the power coefficient of the electric power system. So it can be widely used.
该方案能在80 ~ 265V宽输入电压范围内得到稳定直流电压输出，具有效率高、总谐波畸变率低、功率因数接近为1等特点。
It can achieve a fixed output of DC voltage in the universal input range of ac 80 ~ 265 V. It owns the advantages of high efficiency, low total harmonic distortion, PF near to 1.
所设计的电网参数测试仪可以测量功率因数、电压和电流的有效值、瞬时值等参数。
The tester designed can be used to measure the parameters, such as power factor, effective value of voltage and current, instantaneous value, etc.
用电设备的功率因数是衡量其性能的一项重要指标，而提高功率因数的最根本和有效的途径就是采用有源功率因数校正技术。
The Power Factor of electronic devices is a main index to judging their performance, while Active Power Factor Correction (APFC) is a radical and effective approach to improve Power Factor.
有效等位基因数目总共为104.43，有效等位基因数小于实际观察等位基因数，这是等位基因分布不均匀的结果。
The efficient allelic number was 104.43. The efficient allelic number was less than the observed allelic number, this was the result of the alleles distributing unequally.
同时整流变压器的附加谐波损耗得到了有效降低，功率因数得到提高，改善了系统的电能质量。
Consequently, the additional harmonic loss of rectifier transformer is reduced, the power factor is enhanced and the power quality is improved.
适当增加铁心长度可以有效提高电机效率和功率因数，但会导致启动转矩倍数和最大转矩倍数减小。
Increasing core length properly can raise motor efficiency and power factor, but it will reduce locked-rotor torque ratio and breakdown torque ratio.
高原型牦牛红细胞钾浓度基因座的基因杂合度、基因纯合度指数和有效等位基因数分别为0 0718,0 8564和1 0774。
The gene heterozygosity, the gene homogeneity index and the number of effective allele were 0.0718, 0.8564 and 1.0774, resp.
由于在缺乏启发性的知识的情况下，遗传算法对于高维的数据的特征提取非常有效，所以遗传算法是基因数据研究中非常重要的算法。
Genetic algorithms are good candidates for attacking the challenge since GAs are very useful for extracting patterns in high-dimensionality problems where heuristic knowledge is sparse or incomplete.
平均每个微卫星位点在红鳙群体和普通鳙鱼群体中检测到的平均有效等位基因数分别为2.44和1.89。
The mean number of alleles per microsatellite locus (1.89) in BC population was considerably lower than that (2.44) in RBC population.
标准滴定溶液的标定是其浓度的量值溯源，GB／T 601–2002［1］通过规定工作基准试剂摩尔质量的有效数字，减少因数字修约而引入的不确定度。
Abstract It was commented on significant figures of mole mass of Zinc Oxide and relative atomic weight in calibrating for EDTA standard volumetric solution in GB/T 601–2002.
标准滴定溶液的标定是其浓度的量值溯源，GB／T 601–2002［1］通过规定工作基准试剂摩尔质量的有效数字，减少因数字修约而引入的不确定度。
Abstract It was commented on significant figures of mole mass of Zinc Oxide and relative atomic weight in calibrating for EDTA standard volumetric solution in GB/T 601–2002.
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