为节省动力和更有效地利用燃料，对旋耕机的牵引功率利用系数与旋耕进距的关系进行了研究。
In order to save power and use fuel more efficiently, the relationship between the rotator's traction power coefficient and the rotator width was studied in this article.
高速铁路列车速度快、行车密度大，要求牵引功率高，电力牵引成为高速铁路动力牵引的必然选择。
For the rapidity and traffic density of trains on high-speed railway, larger traction power is needed, so the electric power supply is adopted.
大秦线上运行的两万吨运煤列车长度可达7公里，由大功率电力机车牵引，大大降低了运营成本。
Along this line 20,000-ton coal trains can reach a length of over 7 km pulled by powerful electric locomotives over an extra heavy duty track and driving down operating costs.
因此，哪个车轮丧失牵引力，功率就会流向哪个车轮，而另一个车轮将保持静止。
If one wheel has no traction, power will flow to that wheel and the other wheel will remain stationary.
拥有起重、焊接、挖掘、运输、混凝土、钢筋牵引等主要施工机械设备417台，总功率达到13989.66千瓦。
With lifting, welding, mining, transport, concrete, steel traction, and other major construction machinery and equipment 417 Taiwan, to 13989.66 kilowatts of power.
研究了腔牵引效应、微波功率频移、光频移和缓冲气体温度系数对铷频标输出频率的影响。
The cavity pull effect, microwave power shift, light shift and temperature coefficient which mostly influence the performance of RAFS are studied.
因此，合理设计滤波器，可使牵引变电站的功率因数及谐波同时满足要求。
Hence, a filter could be designed to increase power factor of traction substation and decrease the harmonic currents.
在电气化铁道牵引变电站中，装设无功补偿电容器和谐波滤波器是提高功率因数、改善电能质量的重要手段。
In electric railway traction substation, power capacitors and harmonic filters are the important devices for improving both the power factor and the power quality.
发动机功率的合理计算是装载机总体设计的关键及进行牵引特性分析的依据。
Rational calculation of engine power is the key for general design of loader and it is the criterion of analysis of traction property.
研究了无速度传感器控制技术在大功率电力牵引传动系统中应用问题。
The problems concerning speed sensorless control in high-power electric traction drives was studied.
设计工程中忽略中压网络、牵引机组对功率因数的影响。
In design process, however, the influence of medium voltage supply network and traction unit on power factor is often ignored.
低气压和低气温均构成对机车轮周功率(内燃牵引时)和列车阻力的影响。
Low atmospheric pressure and temperature of surrounding air are both effected to locomotive output power at wheel rim and train resistance with diesel traction.
目前我国机车上仍广泛地采用具有强迫通风的牵引电机，其连续定额功率在很大程度上依赖于通风冷却的效果。
At present, China is still widely used locomotive with forced ventilation of the traction motor, the continuous power rating to a large extent dependent on the ventilation and cooling effect.
对于牵引网的单相性以及实现两臂负荷有功功率的流通，采用了改进型的单相补偿电流检测方法；
For the simple-phase feature of traction grid and the active power circulating between the two arms, an improved method of simple-phase compensating current detecting is used.
由于全并联at供电方式输送功率大、接触网电压损失低，因而特别适用于高速铁路电力牵引供电。
The all-parallel AT traction system is the most suitable system to supply the power of high-speed railway because of its characters of higher transport power, lower voltage drop.
针对电气化铁路变电所功率因数低，不能满足剧烈变化的牵引负荷对无功补偿要求的现状。
The power factor for the railway substation of the electrified railway is low and can not meet the conditions of severe tractive load to reactive compensation requirements.
作者提出直流牵引电动机的各项经济指标均应以单位容积功率为标准来评价。
The author puts forward here that the specific volumetric power should be regarded as the criterion of evaluation for all of the economic norms.
行走功率和牵引力是行走机构的最主要参数之一，是设计的关键。
Walk power and traction force of walk in one of the main parameters of the design.
这列火车是由一台大功率机车牵引的。
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.
提出了在上山坡道上的转向阻力矩、牵引力和功率的计算公式，并以水平地面的实测功率进行了验证。
The formulae for calculating the uphill steering torque resistance, haulage force and power are presented and the results are checked by the measured power on horizontal surface.
本文首先介绍了负载牵引法的重要性以及微波大功率自动测试系统研制的必要性。
The thesis first introduced the importance of the load pull and the necessary of researching for the microwave large power automatic test system.
风力发电机、高速电力机车用牵引电机等，为达到大功率、小体积的使用效果，广泛使用高导电性和高强度的铜合金。
Copper alloy with high conductivity and high strength is widely used for wind mill generator and pulling motor used for electric express locomotive to reach to high power and small in size.
并进一步分析了偏置条件和输入信号功率对副谐波牵引特性的影响。
The influence of the bias point and the input signal power on the subharmonic load pull is also analyzed in this paper.
大功率GTO逆变器用于铁路电力牵引，其PW M控制与一般工业领域中的变频调速系统的PWM控制有很大不同。
High power GTO inverter is used for railway electric traction. Its PWM control is significantly different from variable frequency drive system in conventional industrial area.
介绍了一种适用于大功率牵引电机控制的矢量控制方法。
A vector control system applicable for high-power pulling motor was presented.
对青藏线采用大功率内燃机车的可行性及牵引模式进行了初步的探讨，并提出了高原机车的优选方案。
The feasibility and traction mode of application of powerful diesel locomotives on the Qing Zang line were investigated. The preferred scheme of locomotives in the plateau was proposed.
论述了翻车机系统中重车凋车机牵引力的计算及翻车机系统功率与效率的优化配置。
This essay discusses the calculation of the traction force for the loaded car puller in a car dumper system, as well as the optimization of the system's power and efficiency.
研究结果证明，该牵引馈线负荷概率模型可准确描述牵引馈线有功功率和无功功率的统计特性。
The proposed traction feeder load probability model can be used to describe the statistical characteristics of the active and reactive power of the traction feeder accurately.
研究结果证明，该牵引馈线负荷概率模型可准确描述牵引馈线有功功率和无功功率的统计特性。
The proposed traction feeder load probability model can be used to describe the statistical characteristics of the active and reactive power of the traction feeder accurately.
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