查询词典 voltage

If no lightning current arresters are installed at the service entrance of the building (for example in the low-voltage consumer's installation of the low-voltage main distribution), the operator must be informed that these must be added.

如果在建筑的引入线没有安装避雷器的话，（如在低压控制中心的低压电器）必须告诉操作员，一定要把避雷器加上。

Then, flaw of existing full-digital voltage commutation method is pointed out after the change of the critical area which switch sequence will encounter corresponding to the variety of displacement angle at the input-side of converter has been explicated, then several rules have been presented and used to instruct detailed voltage commutati.

通过分析输入侧功率角变化对矩阵变换器全数字电压换流技术的影响，指出现有全数字化电压换流方案的缺陷，并提出新的改进原则，接着给出详细的数字化电压换流策略实现方法，分析新方法对变换器换流次数的影响。

Then, flaw of existing full-digital voltage commutation method is pointed out after the change of the critical area which switch sequence will encounter corresponding to the variety of displacement angle at the input-side of converter has been explicated, then several rules have been presented and used to instruct detailed voltage commutation method built. Increment of switches' commutation-times, thanks to the new method employed, is analyzed in succession.

通过分析输入侧功率角变化对矩阵变换器全数字电压换流技术的影响，指出现有全数字化电压换流方案的缺陷，并提出新的改进原则，接着给出详细的数字化电压换流策略实现方法，分析新方法对变换器换流次数的影响。

This gives self-heating PTC the advantage of dual of multi-voltage usage in different countries of different voltage.

根据不同用途的需要，调整工艺和配方，可以制造出不同电阻范围，不同表面温度的PTC元件。

B Inform the operator to set the voltage selector switch to the voltage to which the product will be connected.

&b 告知使用者接电压选择开关设定在产品将要连接的电压上，见12.2.3。&

Disadvantage of this device is high voltage, in order to reduce the operating voltage to achieve the purpose of actual use, screening of high dielectric constant material as the dielectric layer material is topic of future research.

缺点是工作电压偏高，需要进一步筛选出介电系数高的物质来作为介电绝缘层材料，以便降低工作电压，达到实际可以使用的目的。

It measures cyclical signal such as frequency ,cycle ,voltage average value or voltage tip-to-tip value of sinusoidal wave, triangular wave, ladder wave, saw-tooth wave, pulse signal and oblique wave which frequency ranges from 64Hz to 1MHz.

本设计为一个多功能数字式测量仪，测量频率范围为64Hz 1Mz的周期性确定信号（如正弦波、三角波、阶梯波、锯齿波、脉冲信号、斜波等）的频率、周期、电压平均值、电压峰峰值。

This method can obtain the threshold voltage,mobility of small-dimensional devices and velocity saturation factor, while the resultsobtained by this method includes the short, narrow channel effects, the degradation ofchannel mobility due to gate voltage, velocity saturation effect and the seriesresistance of source terminal.

该方法可提取出小尺寸MOS器件阈值电压、迁移率和速度饱和因子，从而反映出小尺寸器件的短、窄沟效应，迁移率退化效应，速度饱和效应及源漏电阻对器件特性的影响。

In the wind environment with and without dust, the flashover voltage of flat plate model, Uf, increases with the increment of the wind. This increase trend becomes slow when the wind increase to be 4.5m/s. Also, the influence of the charge of sand dust on Uf is small. In the condition of sand dust deposited on flat plate model, there is a minimum value of Uf with the increase of the density of the deposited sand dust. Besides, the flashover voltage of the dust is influenced by the moisture of the dust.

得到了风沙速度、风沙带电量、沙粒沉积量及沙粒含水量等因素对沿面放电的影响规律；在有风有沙和有风无沙时，平板模型沿面闪络电压Uf随风速的增大而增大，当风速达到4.5 m/s后增大趋势变缓；Uf受沙尘的电荷量影响较小；当干沙粒沉积在绝缘表面时，随着沉积密度的增加，Uf存在着极小值；同时，平板模型的闪络电压还与沉积沙粒的含水量有关。

But the accurate calculation of AC line voltage distortion and DC voltage ripple is rather difficult.

为了提供高品质的电力，电源的交流电压波形畸变率和直流电压纹波倍受关注，但其精确计算比较困难。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。