查询词典 reactive

If the system voltage starts to rise above the desired value, the control circuit will automatically decrease the field excitation and reduce this high voltage by absorbing reactive power.

若系统电压开始升高超过要求值，控制电路就自动降低励磁电流，通过吸收无功来降低电压

The potassium and phosphorus extraction rates are studied for the reactive system consisting of natural potash feldspar ,phosphate rock and phosphoric acid,with the analysis on reactants and resultants by XRD and FTIR.

分析了钾长石、磷矿、磷酸不同组合反应体系的钾、磷溶出率，并用XRD和FTIR对反应物和产物进行了物相分析。

Peroxide value and thiobarbituric acid reactive substances were determined after 0,5,10,15an...

分别在辐照的第0、5、10、15和20d对冷却猪肉糜脂肪氧化指标TBARS值、过氧化值进行测量。

So far, the potential role of atmospherically derived reactive nitrogen in acidification has received little attention in China.

迄今为止，源于大气的反应性氮的潜在酸化作用在中国还没有引起足够的重视。

The experimental results showed that it was feasible to use vinyl ether as reactive monomer in the epoxy acrylate system.

实验结果表明，乙烯基醚作为活性单体用在环氧丙烯酸酯光固化体系中是可行的。

Nicotinamide adenine dinucleotide phosphate oxidase is a major source of reactive oxygen species production in many nonphagocytic cells.

还原型烟酰胺腺嘌呤二核苷酸磷酸氧化酶是许多非吞噬细胞中反应性氧自由基产生的主要来源。

Background: The mitochondrial membrane potential controls the generation of adenosine triphosphate and reactive oxygen species, and sequesteration of intracellular Ca2+[Ca2+]i.

背景：线粒体膜电位控制ATP的生成和活性氧的总类以及细胞内Ca2+的隔离。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

C. exciting generator operating deeply at phase lead as an advancer is correct, which open a new route to solve the problem of sustained over-voltage on supertension line since its reactive power excesses.

从而为解决电力系统超高压输电线路无功过剩引起线路持续过电压问题提供一条新的途径。

SP Series Static Phase Advancers qre on-site reactive power comprnsating devices that our company has developed fo large power three-phase winding asynchronous motors.A phase advancer is wired in the circuit of motor rotor to increase power factor of the motor,decrease stator current, lower the olss of lowvoltage motor and power transmission lines,so as to achieve the goal of energysaving.

南通新业电子 HPX静止式进相器 HPX static phase advancer 概述 General Description HPX静止式进相器是本公司专为大功率三相绕线式异步电动机研制的就地无功率补偿装置，它串接于电机的转子回路，用以提高电机的功率因数，减小定子电流，降低电机和输电线路的损耗，从而达到节能降耗目的。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。