高电压

In Two-Transistor Flyback Converter circuit, a power semiconductor device in Flyback Converting circuit has been replaced by two power semiconductor devices which parallel connected with an ultra-fast diode with soft recovery characteristics. Two-Transistor Flyback Converter can reduce greatly the switching stress of the power switch and does not need to degausser, suitable for high input voltage Switching Power Supply.

反激变换是从Buck-Boost变换演变而来的，将反激变换电路中的单个功率开关管用两个替代，并在每个功率开关管上并联一十箝啦的快恢复二极管而形成的双晶体管反激变换电路，能大大降低功率开关管承受的开关应力，且不需要消磁电路，非常适用于高输入电压的开关电源。

Along with the fast development of the power system,DEH becomes the essential control system for stream turbines,especially for large stream turbines.

随着电力系统的飞速发展，电网正在向电压高、距离远、容量大的方向发展，单元机组的运行方式也更趋复杂。

The results shows that the dehydration currents increase with falling in dehydration temperature, increasing in intensity of electric dehydration field, raising the content of water or iron in the crude oil. Lights striking or/and discharging would appear when those parameters get certain amount. Some serious situation, the electrical equipment of the experiment apparatus of electric dehydrator stops the supply of electricity.

实验结果表明：在直流电场下，极板间电压越高、脱水温度越低、油样中的水含量和铁含量的增加，均使脱水电流增大，达到一定值时会产生打火放电现象，严重时导致实验仪器跳闸，即所谓的"垮电场"。

The light source detecter makes used of the variation of the separated voltage by the resistivity of photosensitive resistance input to the singlechip. If the voltage higher than a worth, the singlechip will regard it as high voltage state, it means that the light source has been detected. Otherwise the low voltage state means the light source has not been detected.

光源探测是利用光敏电阻阻值分压的变化向单片机输入，电压大于某值时，单片机认为是高电平，即表示该路探测器感应到光源，否则为低电平，即表示探测器没有感应到光源，如此即可由两路信号判断光源的方向。

Based on Reddy higher-order shear deformation plate theory and general von Kármán-type equations, the analytical solutions for free vibration and dynamic response of simply supported functionally graded plates with piezoelectric layers in thermal environments are described with double Fourier series, where temperature-dependent material properties are taken into account.

基于Reddy高阶剪切变形理论和广义Kármán 型方程，用双重Fourier级数展开法求得了热环境下带压电层的功能梯度复合材料混合层合板的自由振动及动力响应的解析解，分析中考虑了材料热物参数对温度变化的依赖性，讨论了环境温度和控制电压对固有频率及动力响应的影响。

The design started from the expression of the current producing the pulsed magnetic field, and was based on the following principles: low eddy current loss, small capacitive energy storage and large quality factor. The optimization method of the storage capacitor and charging voltage of the field producing system was presented.

从产生脉冲磁场的电流表达式出发，根据涡流损耗不能太大、品质因数要高和电容储能要小的原则，给出了脉冲磁场产生系统的储能电容和充电电压的优化设计方法。

Finger contact resistance is one of the significant factors,which affects fill factor and efficiency of solar cells.

引 言太阳电池是低电压高电流的发电器件，因此减少太阳电池的串连电阻是非常重要的。

During the course of electro form process, we got ideal electro form process condition that can get windings with uniform granule and high compactness, including current waveform, frequency, duty ratio and voltage to the windings ect. Affect of underlay's flatness to the electroform process are also analysed in detail. Compatibility between photoresist and electroforming solution is also solved.

在电铸工艺中，摸索出获得颗粒均匀、致密度高的金属绕组线圈的电铸工艺条件，给出了电铸电流的波形、频率、占空比及电极电压，并对衬底表面不平整度对电铸效果的影响进行了详细分析，解决了电铸过程中光刻胶与电铸液兼容性的问题。

During the course of electro form process, we got ideal electro form process condition that can get windings with uniform granule and high compactness, including current waveform, frequency, duty ratio and voltage to the windings ect. Affect of underlays flatness to the electroform process are also analysed in detail. Compatibility between photoresist and electroforming solution is also solved.

在电铸工艺中，摸索出获得颗粒均匀、致密度高的金属绕组线圈的电铸工艺条件，给出了电铸电流的波形、频率、占空比及电极电压，并对衬底表面不平整度对电铸效果的影响进行了详细分析，解决了电铸过程中光刻胶与电铸液兼容性的问题。

Therefore, a voltmeter with high input resistance, such as an electrometer, is required.

所以需要使用具有高输入电阻的电压表，例如静电计。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。