查询词典 active

In this condition, the parallel transformer can exhibit nearly zero impedance to harmonic current and very high primary self-impedance to fundamental current and thus lead harmonic current in power systems to flow into the transformer branch. With a step-down transformer, the power semiconductor switches of the active power filter are always worked in relatively low voltage, which ensure the security and reliability of the active filtering device.

实时检测并联变压器一次侧的谐波电流，根据谐波补偿条件，得到谐波补偿电流的指令信号，通过电力电子变流器跟踪产生谐波补偿电流注入到二次侧补偿绕组中，使得并联变压器对谐波电流呈现近似为零的低阻抗，对基波电流呈现很大的一次侧自阻抗，从而输导系统中的谐波电流流入并联变压器支路。

Indicators are active, then this represents that the alarm condition is still active.

任一个高/低真空显示亮灯，意味着报警仍在发生。

Methods: The marine bacteria were isolated with the infinite dilution and plate streak technique and screened for antimitosis active strains by Pyricularia Oryzae model. The active strain 32-11-2-2 was subjected to morphological, physiological and biochemical study, and was classified by the analysis of the 16S rDNA sequence. Results A total of 421 strains of marine bacteria were isolated from marine water and sediment samples; 54 of them had antimitotic activity.

采用无限稀释和平板划线法分离微生物样品，利用稻瘟霉模型进行活性筛选；并对其中的活性菌株32-11-2-2的形态、培养特征以及生理生化特征进行研究，使用16S rDNA序列分析的方法对菌株32-11-2-2进行了分类鉴定。

In this articl,the discrete computing formula s of AC vohage rms value,AC current rms value,active power are given with the strict mathematics derivation,the minimum sampling time per cycle is given dividedly in rms value and active power calculation.

提出了交流信号的电压有效值、电流有效值、有功功率的离散计算公式，并给出了严格的数学证明，分别得出了有效值和有功功率计算中每周波最少采样点数。

Based on the analysis of vertical open degree of fault and its influence factors in active period ,a method judging vertical open degree of the fault in active period was set up by the angle between the orientation of maximum principal compressive stress and the strike of the fault.

在分析断裂活动时期垂向开启程度及其影响因素的基础上，利用最大主压应力方向与断裂走向之间夹角的大小，建立了一套断裂活动时期垂向开启程度的判别方法，将其应用于海拉尔盆地贝尔凹陷布达特群潜山4条主要源断裂的研究中。

Its real power and reactive power consumption is the vector sum of active power, active energy meters record consumption of electricity less than the actual value.

其实际消耗是无功电能和有功电能的矢量之和，有功电表记录的数值小于实际消耗的电能。

Software Description: About Active SuperStore, Build an e-commerce application with Active Superstore.

Active SuperStore 通过这个软件你可以创建你自己的一个电子商务应用程序。

Not active or tending to be active.

不活动的：不活跃的或倾向于不活跃的

In seasonally frozen ground regions as well as permafrost regions,active layer is the most active terrane in terms of thermodynamics.

活动层夏季融化、冬季冻结的近地表土层，是冻土地区热力动态最活跃的岩层，在冻土研究中有着重要意义。

In this paper, nanopowders of rare earth oxides and tungsten were prepared and 0-3 type nano-composit rare earth tungsten thermionic emission materials were fabricated with novel technics. The raw material selection, preparation technic parameter, structure, physical and chemical characteristic, the rare earth distribution and the emission behavior were studied. The influence between the active layer and the thermionic emission performance, rare earth elements diffusion and distribution along depth were investigated in detail. The surplus RE formation and the electron transfer were discussed in theoretically. The thermionic emission current density of the single surplus RE on the active layer was educed. We adopted "liquid-liquid mixing, freeze-drying and two stage-reduction" working step firstly to produce the RE-W nanopowders including La-W powder, Ce-W powder and Y-W powder.

本文采用细化显微组织的新工艺，制备了纳米稀土钨粉末和0-3型纳米复合稀土钨热电子发射材料，探讨研究其原料选择、制备工艺及参数、结构特征、物理和化学特性、稀土分布均匀性、以及热电子发射特性；系统研究了稀土元素的高温扩散情况、高温状态下活性层中稀土的纵向深度分布、以及表面活性物质和活性层厚度对热发射性能的作用；从理论上分析阐释了超额稀土的形成及其电子的传递过程；并从理论上推导了活性层中单个超额稀土的热电子发射电流密度。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。