直流电场作用后共晶片层间距经历了一次先减小后增大的过程,并且在较大的电流密度时共晶片层开始发生紊乱;
The eutectic lamellas distance decreased first and then increased due to the direct current field treatment, and the eutectic lamellas were in disorder with the treatment of strong current density.
研究了带有有限长裂纹的导电薄板在垂直于裂纹的方向上通入直流电流时,裂纹的止裂问题。
The crack arresting problem in a thin current carrying plate was studied for the situation of providing a DC current perpendicularly toward the crack direction.
当导体的自由电子只以一个方向运动时,这样产生的电流叫做直流电,常缩写为。
When the free electrons in a conductor move in one direction only. The current thus established is called a direct current, which is often abbreviated to DC.
提出一种新的整流电源控制策略,它可以使整流电源工作时,从电网输入的电流近似为正弦波,功率因素接近1。
This paper describes a new method used for controlling convert power supply, which can make the input current to be sinus waveform, and the power factor to be 1.
进行了恒电流电位-时间曲线和循环伏安曲线的测定,显示了铁电极进行氰化物镀铜时,镀层沉积前铁表面的电位活化过程。
The potential-time curves under constant current and cyclic voltammetry curves were measured, and the potential activation process of copper plating on iron substrate in cyanide electrolyte was shown.
AD任务用于采集电池化成时的电流电压值,用于和工艺文件给定参数比较。
The task of AD conversion gets the value of current and voltage, so as to compare with the reference value set in processing parameters.
他们训练老鼠害怕两种不同的声音,当播放声音时,会用轻微的电流电击老鼠的爪子。
They trained rats to fear two different sounds by sending a mild electric shock through the rats' PAWS when they played the sounds.
针对直流电网短路故障时迅速产生的短路电流,利用IGBT器件为核心,设计出一种新型的直流短路电网限流装置并阐述了其工作原理。
As the large fault current occurs in DC power system, the paper makes use of IGBT to design a new type DC fault current limiter.
限流电抗器电抗值选择时既要将短路电流限制到规定值,又不能使电压损失过大。
When the reactance value of current limiting reactor is selected, the short circuit current should be limited within the specified value and the voltage loss should not be too much.
探讨了在适当的腐蚀介质中,对粉末冶金铱材样品进行交流电解腐蚀时,腐蚀因素(电流、电压、通电时间等)对腐蚀效果的影响。
The effect of corrosive factors (current, voltage and time etc. )on the result of AC electrolytic corrosion of PM iridium specimens in a suitable corrosive is discussed.
在负载电流电路剩余电流输出时被阻止。
The residual current flows in the load current circuit when the output is blocked.
本发明提供一种用于在低电压域断电时防止电流泄漏或直流电流的设备和方法。
An apparatus and method are provided for preventing a current leakage or direct current when a low voltage domain is powered down.
当连接在一个光伏阵列时,每个光伏组件独特的电特性可决定整个阵列电流电压特性,由此提高光伏系统的发电量。
When combined in a PV plant array, unique electrical characteristics of each PV module define the current voltage characteristic of the whole array, and thus the energy yield of the system.
J01460投影电流表适用于普通中学、中专配合投影仪在进行教学演示或实验时测量直流电路中的电流强度。
Projection Ammeter, J01460, is suitable for middle schools and polytechnic schools to measure current intensity in the DC circuit in teaching demonstration or experiment with the projector.
当电压表测量探头2和探头3之间的电压降时,该交流电流在r3上产生的电压降就会引起错误的结果。
The resulting voltage drop across r3 will cause erroneous results when the voltmeter measures the voltage drop between probes 2 and 3.
该系统根据CO2焊短路过渡特点,对焊接电流进行较为精确的控制,并给出了该系统实际施焊时的电流电压波形。
According to the character of short-circuit transfer, the welding current was accurately controlled by this system, and the real welding voltage and current waveform was given.
本发明直接对交流电流进行采集和判断,缩短了信号采集时间和电流过流时的保护时间。
The method and the device acquire and judge the alternating current directly, shorten the signal acquisition time and the protective time during overcurrent.
本发明直接对交流电流进行采集和判断,缩短了信号采集时间和电流过流时的保护时间。
The method and the device acquire and judge the alternating current directly, shorten the signal acquisition time and the protective time during overcurrent.
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