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supply frequency
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  电源频率
     Al-1%Si and Al-1.7%Mg round ingots casting (Φ 120mm) with good surface quality are obtained at the following casting condition: casting temperature 720℃~725℃,flow rate of cooling water 0.8~1.0t/h, casting speed 1.4~1.5mm/s, power supply frequency 2500Hz, power 10kW.
     在浇注温度720℃~725℃,冷却水量0.8~1.0t/h,铸锭拉坯速度为1.4~1.5mm/s,电源频率2500Hz,功率10kW的工艺参数下,可制得表面质量较好的Φ120mm的Al—1%Si和Al-1.7%Mg铸锭。
短句来源
     AZ61 magnesium alloy billets(F 120mm) with good surface quality are obtained at the following casting condition: casting temperature 720℃ ~740℃,flow rate of cooling water 0.8t/h~1.0t/h, casting speed 1.0mm/s, power supply frequency 2500Hz, power 8~10Kw.
     在浇注温度720℃~740℃,冷却水量0.8t/h~1.0t/h,铸锭拉坯速度为1.0mm/s,电源频率2500Hz,功率8~10Kw的工艺参数下,制得表面质量较好的Φ120mm的AZ61镁合金铸锭。
短句来源
     Design of 400Hz Military Power Supply Frequency and Phase Measurement based on MCU
     基于单片机的400Hz军用电源频率和相位的测量设计
短句来源
     On the basis of the studies above, the minimum power supply frequency favorable to uniform glow discharge was formulated.
     在此基础上,根据大气压下有利于均匀辉光放电的放电条件,最终推算出有利于均匀辉光放电的最小电源频率
短句来源
     Study of Ion Movement and Power Supply Frequency in DBD
     DBD中的离子运动与电源频率
短句来源
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  “supply frequency”译为未确定词的双语例句
     And the P and Q of the rotor broken bar motor will correspond to an ellipse due to they comprise an additional frequency component of 2sfs (s is slip and fs is supply frequency).
     故障电机则由于P、Q中附加频率为2sfs(s为转差率,fs为电网频率)的波动分量而对应于1个椭圆。
短句来源
     And the P and Q of the rotor broken bar motor will correspond to an ellipse because they comprise an additional frequency of f′=(1-2s)f_s(s is the slip and f_s is supply frequency).
     故障电机则由于P、Q中附加频率为f′=(1-2s)fs的波动分量而对应于一个椭圆。
短句来源
     The asymmetry of the rotor caused by broken-bar fault will give rise to the appearance of additional frequency component of 2sfs (s is slip and fs is supply frequency) in the electromagnetic torque spectrum.
     当感应电机转子出现断条故障时,转子绕组的不对称将会使电磁转矩谱中引入2sfs(s为转差率,fs为电网频率)谐波分量。
短句来源
     Application of double-passage integrating circuitwater supply frequency conversion system of high buildings
     双通道积分电路在高楼变频供水系统中的应用
短句来源
     Unbalanced loading of turbine generator induced rotor currents at twice the supply frequency(100 Hz),with consequent heating of solid iron and other damping circuit which limited the negative sequence capability of the machine.
     汽轮发电机的不平衡负载将使转子感应出两倍工频(100 Hz)的涡流,引起转子铁芯及其阻尼电路的发热,从而限制了发电机的负序能力。
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  相似匹配句对
     FREQUENCY
     生死频率
短句来源
     Design of Medium Frequency Power Supply
     中频电源设计
短句来源
     High-Frequency Induction Heating Supply
     高频感应加热电源
短句来源
     On Effective Supply
     论有效供给
短句来源
     Frequency Response
     频率响应
短句来源
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  supply frequency
The results of calculations of the effect of changing power supply frequency, coil and melt geometry, current and phasing are presented.
      
If at all possible, it is better to make the supply frequency greater than the resonance frequency of the vibrator.
      
Design of tuned circuits for frequency-meters of supply frequency
      
An electronic phase meter for supply frequency circuits
      
Effects of shelter type and food supply frequency on survival and growth of stage-2 juvenile white-clawed crayfish (Austropotamo
      
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Discussing the magnetic skin effect taking place in electromagnetic stirring in continuous casting, an eddy current equation is derived properly under some special conditions. In this way the expressions of attenuation coefficient k1 and penetration depth h in the propagation process of electromagnetic wave are obtained. By simulating tests,the relationship between the penetration depth and power supply frequency, and the motion of liquid metal in stirring zone are discussed. The results will be available...

Discussing the magnetic skin effect taking place in electromagnetic stirring in continuous casting, an eddy current equation is derived properly under some special conditions. In this way the expressions of attenuation coefficient k1 and penetration depth h in the propagation process of electromagnetic wave are obtained. By simulating tests,the relationship between the penetration depth and power supply frequency, and the motion of liquid metal in stirring zone are discussed. The results will be available to the frequency selection of power supply for magnetic stirrer in continuous casting.

通过分析连续铸钢电磁搅拌过程中由于涡流产生的磁集肤现象,推导出在某些特定条件下的涡流方程,以此引出电磁波传播过程的衰减常数k_1及透入深度h的表达式。通过模拟实验,对透入深度与电源频率的关系与搅拌区域内的液态金属的运动状态予以分析和讨论,为连铸生产中选用电磁搅拌器的电源频率提供了有价值的参考。

This paper specifies the research and design of a new style constant frequency contravariant power supply.We have adopted independent excitation inverter with base drive transformer, overcurrent protection and cell's overcharge and overdischarge protection, ect. on the power supply. Some shortage about the contravariant power supply at present market, such as the contravariant power supply frequency is not stable, its effciency is low, it is not very reliable, etc. have been overcome.

本文论述了一种新型稳频逆变电源的研究与设计.该电源采用了具有驱动变压器的它激式逆变电路,并加有过流保护,电池过充过放保护等措施.这种电源克服了目前市场上逆变电源频率不稳定.逆变效率低.可靠性差等问题.

It is very interesting to know well variations of different photoelectrical parameters of the fluorescent lamp for understanding deeply the work characteristics of fluorescent lamp, measurement accurately of total luminous flux and its photoelectrical parameter.In This paper are describe the variations of the total luminous flux, lamp wattage, woring current and voltage across the lamp with different input voltage.The variation rates of different photoelectrical parameters of various imput voltage have been...

It is very interesting to know well variations of different photoelectrical parameters of the fluorescent lamp for understanding deeply the work characteristics of fluorescent lamp, measurement accurately of total luminous flux and its photoelectrical parameter.In This paper are describe the variations of the total luminous flux, lamp wattage, woring current and voltage across the lamp with different input voltage.The variation rates of different photoelectrical parameters of various imput voltage have been calculated.The paper discusses also in controlling the input voltage 220V and the lamp wattage 40W, the change of supply frequency from 46Hi to 56Hi,the measure ment of the total luminous flux and electrical parameters of the fluorescent lamp,and the investigation of variation of its photoelectrical parameters with supply frequency.

掌握荧光灯光电参数之间的变化关系,对深入了解荧光灯的工作特性,准确地测量荧光灯的总光通量及其电参数,对生产、质检和计量测试都是很有意义的。本文叙述了在不同输入电压下,测量灯管的总光通量、灯管功率、工作电流、灯端电压的实验。计算出各自以输入电压为220V时对应的值作参考的变化率。再以总光通量的变化率除以对应的电参数的变化率。本文还叙述了分别控制输入电压为220V和灯管功率为40W时,改变电源频率从46Hz到56Hz,测量荧光灯的总光通量及其电参数、考察其光电参数随频率变化的规律。

 
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