它的主要特点是适用于多种相数的步进电机,可在整步或半步方式下工作。
Its major characteristic is suitable for polyphase walking electromotor and can work in full or half step.
接着从对称性、力波阶数等角度研究了SR 电机相数及绕组连接方式、极数、并联支路数的选择问题。
Then the selections of phase number, winding connection, pole number and number of branches in parallel are optimized according to the SRM's symmetry and order of force wave.
从有刷直流电动机的绕组模型出发 ,探讨了永磁无刷直流电动机相数的选择以及与之相适应的绕组联接 ,并就绕组的出力情况作了一些分析 。
This paper studies phase selecting and winding connection of brushless DC motor according to brush DC motor winding model, and analyses the effectiveness of winding on working condition.
根据联邦道路管理局的统计显示,与2009年相比,2010年的美国驾驶员行驶总英里数增加了205亿英里,增长了千分之七。
The number of miles traveled by American drivers in 2010 grew by 20.5 billion, or 0.7 percent, compared with 2009, according to the Federal Highway Administration.
开市的头15分钟交易中,日本基准的日经225指数同周四相比,下跌185.14点,或2.07%。
In the first 15 minutes of trading, Japan's benchmark 225-issue Nikkei Stock Average fell 185.14 points, or 2.07%, from Thursday.
最后用DSC进行检测,考察了柔性链上碳原子数对介晶相态、清亮点温度和相转变温度的影响。
The influence of the number of carbon atoms in flexible spacer on their mesomorphic state, clear temperature, phase-transition temperature is studied by using of DSC.
通过选择不同结构、不同碳数的醇做流动相的极性改性剂,优化了色谱分离结果。
The chromatographic conditions were optimized using different alcohols as mobile phase modifier. The effect of temperature on chiral separation was investigated.
油相相对渗透率对非达西效应不敏感,但随毛细管数增加而增加。
Relative permeability of oil phase increases with the capillary number but is insensitive to non-Darcy effect.
采用相多普勒颗粒分析仪(PDPA)测量了雷诺数为8500的两相圆湍射流速度场,研究了两种大粒径颗粒对湍流的调制作用。
Two-phase velocity fields in a round turbulent jet with Reynolds number 8500 were measured by phase Doppler Particle Analyzer (PDPA).
本文提出了三绕组变压器的一种新的三相模型,这种模型避免了现有模型存在的误差大或维数高以及奇异性问题。
A kind of three-phase models of three-winding transformers were presented which overcame some drawbacks in the existent models such as the large error or high dimension and singularity.
在颗粒雷诺数较小范围内,针对不同密度材料颗粒对气相湍流的调制规律进行了实验研究。
This article makes an experimental study of gas-phase turbulence modulation by particles with different material density in small particle Reynolds number range.
两相流斯特拉赫数随含气率的增加而减小。
Strouhal number in two-phase flow reduces with the increase of the void friction.
而转炉渣中存在明显的难磨相,不同粒度范围内的分形分维数有明显差异。
However, tough phases are presented in the BOF slag, and the powder's fractal dimensions between different particle size ranges have obvious differences.
共混过程中的相区尺寸的演变过程具有自相似性,通过求取分形维数,从数量意义上,分析研究相分散动力学过程机理。
The result also show that evolvement process of the phaseregion size has the self-similarity and the fractal dimension can be a good means to study the evolution law of phase dispersion dynamics.
通过数值计算分析了原子运动速度、场模结构参数和平均光子数对光场二阶相干度和模间相干度的影响。
The influence of atomic motion, the field structure and intensity of photons on second-order correlation function and two-mode correlation function are obtained by numerical calculation.
在测得大量数据的基础上,得出了此时气液两相斯托拉赫数的通用关系式。
On the basis of a huge quantity of measured data obtained is a universal relation of the gas liquid Strouhal number for the above cited case.
我真的不失望,因为它找到了一个,和3相当接近的数,我还是挺高兴的。
You know, I was not really disappointed, it found something close enough to 3 that I'm happy.
一个数和0相乘,还得0。
鄂尔多斯盆地三叠系延长组长1段发育一套深湖相浊积岩及数层暗色泥岩。
Dark mudstones and the turbidites of deep lake facies were discovered recently in the Member 1 of Yanchang Formation, Upper Triassic in Ordos Basin.
日常生活能力总分均数26.62,与常模20分相比差异有显著性(P<0.05),表明其日常生活功能有所下降。
The average total score of ADL scale was 26.62 points which was 20 points different from that of norm P< 0.05 indicating that their ADL was declined.
利用分形维数定量表征催化剂的形状不规则程度,对其中进行的气-固相催化反应进行了分析计算。
The fractal theory was introduced into the gas solid catalytic reaction system to describe the influence of the surface irregularity of catalyst on the gas solid catalytic reaction.
在该模型中考虑了底排出口面积比,排气固相颗粒质量比,燃料热值,燃气分子量,燃烧室总温,飞行马赫数等因素。
In the model the exit area ratio, solid particle mass ratio, fuel enthalpy of combustion, jet gas molecular weight, chamber stagnation temperature, flight Math number etc. have been considered.
结果发现菌落的分维数与其形态特征有密切的联系,菌落生长过程的分维数变化与其生长曲线十分相似。
Then, the colony fractal dimensions at different period of growth are calculated by gray-scale statistics and boz-counting. It reveals that bot…
一个数和1相乘,还得原数。
通过计算曲线,直观地表示出液相不均匀分布和汽相横向混合对填料塔当理理论塔板数的影响。
The influences of liquid maldistribution and the lateral mixing of gas on the equivalent NTP are shown by the curves calculated.
为了探求气固两相圆湍流射流的特性,研究了不同雷诺数对气固两相圆湍射流的影响。
To study the characteristics of the gas-particle turbulent round jet, the effects of Reynolds number on the round jet were investigated.
利用相位多普勒仪(PDPA)系统研究了不同旋流数下突扩旋风筒内气粒两相湍流特性的变化规律。
The dilute gas-particle flows in a cyclone chamber with axial and tangential inlers of different swirl numbers were studied by using a Phase-Doppler Particle Anemometer(PDPA).
训练里程数应当回到和第一周相当的量,以使你的身体从疲劳中得到休息和恢复。
Your training mileage should drop back down to roughly around the first week of the cycle in order to let your body rest and recover from the new strain.
训练里程数应当回到和第一周相当的量,以使你的身体从疲劳中得到休息和恢复。
Your training mileage should drop back down to roughly around the first week of the cycle in order to let your body rest and recover from the new strain.
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