查询词典 closed circuit television

When the two convertors run concurrently, circulatory zero-sequence current of the shunt circuit between the convertors is restricted to be zero; circuit loss is accordingly reduced, and circuit components are protected.

当两个变流器同时运行时，抑制两个变流器间的并联回路环流零序电流为零，从而减小电路损耗，保护电路元件。

This paper emphatically analyzs the circuit experiments to exist deficients, to advance improvement measures about the circuit experiments, in the process of exploring and researching reform and innovating of circuit experiments.

在探索和研究电路实验的改革创新过程中，分析电路实验存在的不足，对电路实验提出改进的措施。

Short circuit: short circuit is often accompanied by other destroy them, and the short circuit itself is with aging, human errors, and so on, shorts, don't immediately need to double-check electrized, actuallycaused multi-fault, then electrized tests.

短路：短路必然伴随着其它元件的败坏，而短路本身是由于元件老化，工钱失误等所致，爆发短路后，不给登时通电，需给不苛查抄引起此类障碍的来因后，再举动通电尝试。

Electric circuit diagram, the PSpice proceeds to weave to the electric circuit distance and emulations imitate true, its and proceed the verification to the function of the electric circuit.

摘要实验利用Orcad中的Capture进行电路图的设计，PSpice对电路进行编程及模拟仿真，并对电路的功能进行验证。

The problem is given for the normal circuit of the double exci ter and the trubogenerator for heat giving.The circuit of the double exciter is discusse d and the new circuit of double exciters is given which can be used on the trubo genator for heat giving.

文摘：提出相位复式励磁装置与供热为主的汽轮发电机常规接线配装存在的问题，从研究改进&相复励&接线方式入手，以满足供热式汽轮发电机励磁的需要，推荐使用改进的新型接线方式。

According to switching power supply's theory, the circuit analysis, and transformer's foundation, it has analyzed switching power supply's principle of work from the electric circuit work's perspective, and factures a kind of switching power supply circuit diagram, which is quite simple, and is reliable for the operation, and is suitable for using commonly in the present life .

再根据开关电源的理论、电路分析、及变压器的基础，从电路工作的角度分析了开关电源的工作原理，制作了一种比较简单，工作可靠，且适用于目前生活中常用的开关电源。

These detecting methods are aimed at three-phase circuit, and can not apply directly to single-phase circuit and four-phase circuit, have certain defect in general application.

为此，本文对APF的检测、控制及实现技术进行了深入的研究，这些研究工作对APF的早日工业化推广应用具有重大意义。

Various harmonic current detecting motheds in common use are analyzed. These detecting methods are aimed at three-phase circuit, and can not apply directly to single-phase circuit and four-phase circuit, have certain defect in general application.

本文分析了目前常用的谐波电流检测方法，这些检测方法多着眼于三相电路，不能直接应用于单相电路及四相电路，在应用的通用性上存在一定的缺陷。

Our company has manufactured the tester and automatic assembly line for Mini Circuit Breaker, moulded case circuit breaker, frame circuit breaker, AC contactor, time relay, thermal relay, protector, leakage protector, Explosion-proof, UL Authentication specialization equipment, HV/LV complete sets, Fuse, Button indicator,Air operated part etc. for 19years, passing through ISO9001 Quality Management System Authentication firstly in 2002 and has been evaluated as the advanced unit many times.

我们浙江永光检测设备有限公司专项供应小型断路器、塑壳断路器、框架断路器、交流接触器、时间继电器、热继电器、保护器、漏电保护器、防爆电器、UL认证专用设备，高、低压成套电器、容断器、按钮指示灯、气动元件等检测设备、试验设备、自动化流水线设备、校验台专业19年，2002年通过ISO9001质量管理体系认证并多次被评为先进单位。

Short-circuit current secretly schemes against , system hits the target to the transformer substation when three-phase short circuit happened in the lower voltage grade bus bar one by one, the difference what be flowed past short-circuit current has been carried out secretly schemes against

短路电流计算，对变电站系统中的各个电压等级下的母线发生三相短路时，所流过的短路电流进行了分别计算。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。