查询词典 air current

We have found that, within the physical ranges of the model parameters, the correlation functions of hole hoppings giving rise to closed current flow patterns in the circulating current phases are substantially larger than those of hole hoppings corresponding to open current flows.

通过模拟发现，对应于闭合环形的关联函数在相同距离上要比其他所有没有闭合的关联函数大得多，因此证明在三带Hubbard模型中存在环形电流相。

Therefore the use of electronic current transducer as the measure unit of distance protection is suggested in this paper. The working principles and characteristics of electronic current transducer are introduced. Then the improvement on the starting component, phase selecting component, impedance component and other functional component of distance protection by using of optical current transducer is discussed afterward.

因此该文提出了采用电子式电流互感器作为距离保护的测量元件的建议，论证了采用光学电流互感器对距离保护起动元件、选相元件、阻抗元件及其他功能元件等带来的优越性。

Projection Current Detector J01465 is suitable for middle schools and polytechnic schools in the teaching demonstration or experiment with the projector as the current detector to measure small electric current and electric potential difference such as electromagnetic induction, photoemission, thermoelectric induction, and bridge measurement.

J01465投影检流计是适用于中学、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微小电流和微弱电势差，如电磁感应、光电效应、温差电偶、电桥测量等实验的检流计。

A current integral calculation unit integrates the value of the sampled motor current over a sampling period to calculate and output a current integral to an abnormality determination unit.

电流积分计算单元在采样时间段上积分采样电机电流，以计算电流积分并输出其到异常判断单元。

Operational Tran conductance lifers and Grounded actorhas become one of the most important methods to implement integrated continuous-time filters. Operational Tran conductance Amplifierscan transfer input voltage into current to output,and control or change output current within large range by an external controlling current of amplifier. Most articles consider OTA as a voltage-mode circuit component and give voltage-to-voltage transfer function of all having been implemented filter circuits,i.e. The input signal and output signal of filter circuits are voltages .

运算跨导集成运算放大器OTA ( Operational Tran conductance Amplifier 以下简称跨导运放)的功能是将输入电压转换为电流输出，并通过外加偏置电流控制运放的工作电流，从而使它的输出电流在较大范围内变化，而在大多数文献中，器件都被作为电压模式元器件使用实现的各种滤波电路都是按传送电压比给出的，即滤波电路输入信号和输出信号均为电压信号。

The mathematical models for overall breaking process of circuit breaker are developed, through which the driving mechanism and the arc chamber, the interruption performance and the opening velocity are closely connected, the breaking process under different interrupting conditions are simulated, then the arcing time difference is determined. The interrupting conditions include line charge current, breaker terminal fault current and short line fault current .

本文建立了一种把操动机构与灭弧室相联系、开断性能与运动特性相联系、一维和二维模型相结合的压气式SF6断路器开断性能的仿真方法，对不同开断条件下（包括线路充电电流开断、不同试验方式的端子短路开断、不同试验循环的近区故障）断路器的开断过程进行了分析，用仿真的方法确定了断路器在不同开断条件下能成功开断的燃弧时差，并给出了开断性能与运动特性之间的关系。

Weigh's addition minishes the loss of net's volume in pure current, but makes no differnce in the pure wave condition. After installed of sinking ring or lower ring, the loss of net's volume is decreased. The loss of net volume is more in the current combined with wave condition than in the pure current condition.

在纯流条件下，增大配重均有利于减小网箱的体积损失；而在纯波条件下，配重的增加对于改善网衣的变形没有实质性的意义；设置了底圈或沉降圈后，均能在一定程度上减小网衣的体积损失；波流组合条件下网衣的体积损失要明显大于纯流条件下的体积损失。

L Soft Starts, starts current is less than rated current; traditional Y-△ starts is 3～5 times rated current, waste energy.

l 软启动，启动电流小于1倍额定电流，普通空压机Y-△启动，3～5倍额定电流，更耗能

See "e-paper" on page 1986, a concept of "Open-phase Motor Protection Discussion Summary," International Electrotechnical Commission to IEC202-1 low-voltage motor starter ② set out by the two-phase motor rated current up to 1,15 times rated current , while the third phase by 0.9 times the rated current to 0, the starter should be in action within 2h.

见《电子报》1986年1观页《电动机断相保护讨论小结》入国际电工委员会IEC202－1低压电动机起动器）中规定之②在电动机两相由额定电流升至1、15倍额定电流，而第三相由0.9倍额定电流降至0时，起动器应在2h内动作。

This series of residual current circuit breaker is the residual current—operated electronic circuit breaker,composed of zero—sequence current transformer,electronic control leakage release and DZ20 type circuit breaker with overload and shod—circuit protection.

本系列断路器电流动作型电子式漏电断路器，主要由零序电流互感器、电子控制漏电脱扣器及带有过载和短路保护的DZ20型断路器组成。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48