故障时间

This system possesses high stability,high efficiency,friendly interface and good extendibility.

该系统运行稳定高效，大大缩短电梯故障维修的反应时间，人机界面友好，具有良好的可扩展性。

Its efficiency is testified by an application. The fixtureless tester can perform 100% test for PCB's connectivity through the probe movement. It takes a long time to test a PCB with low efficiency.

传统的飞针式在线测试仪必须通过大量的机械运动才能实现印刷电路板连接故障的完全测试，因此完成一块印刷电路板的测试需要较长的时间，检测效率较低。

The poor connection of all the NCU1 network controllers of your company's BA system has made it impossible to have an on-line control of the No.2 recycling pump of heat exchanger, the geothermic pump, the pump motor, the ventilation motor, the grill motor, and other equipment, and to read the feedback values of the on-spot breakdowns and conditions.

贵司BA系统NCU1网络控制器全部离线，造成热交换器2#循环泵、地热循环泵、水泵电机、通风电机、格栅电机等设备无法在线控制，不能读取现场故障、状态等反馈值。1#－5＃生活水泵、生活水泵运行时间统计、锅炉系统供回水压差、供水温度、回水温度、回水流量等数值无法显示运行状态及现场流量值数据。

Sensor management for fault tolerant integrated inertal flight control reference and navigation system.PLAN'86-Position Location and Navigation Symposium. New York: Institute of Electrical and Electronics Engineers,1986.445～4554 Motyka P. Reliability analysis and fault-tolerant system: development for a redundant strapdown inertial measurement unit. NASA-

在利用陀螺的状态进行故障管理时，设计了一套具有软件冗余和时间冗余能力的容错算法，降低了虚报率和漏报率，提高了系统可靠性，实现了FO-FO-FO-FO-FS的容错能力。

Directing at the data distortion caused by the fault of sensors, and considering the factors influencing the measurement of certain exhaust gas in an animal barn such as temporal, spatial and environmental parameters, neural network is introduced to data fusion so as to figure out the missed data due to the faults of this sensor measuring the value of this exhaust gas. By this method, total emission of nocuous gases from the barn is measured accurately, and the emission of exhaust gases beyond normal standard was controlled.

针对因传感器故障而失真的数据，综合考虑对畜禽场排放的某一废气测量值的时间、空间和环境等多种影响因素，使用基于神经网络的数据融合方法来估算该废气的浓度，实现失真数据的恢复，从而精确地测量出养殖场连续排放的有害气体的总量，对超标排放进行监控。

In Chapter 3,the problem of robust fault detection for linear discrete-time systems with both unknown inputs and Polytopic uncertainties is studied.

第三章研究了受未知输入和Polytopic型不确定性影响的一类线性离散时间系统的鲁棒故障检测问题。

This system can enormously save time before operation, expediently analyze faults, simulate dispatching control mode in all situations and specially be suitable to practice of emergency preplan in given condition.

结果表明：仿真系统对于实际应用系统的研发、开通运营、日后的维护和系统升级具有不可替代的作用，它能够极大地缩短开通前的调试时间，方便故障分析和各种条件下调度指挥方式的模拟，特别适合特定条件下应急预案的演练。

On the basis of the analysis of the transient negative current, a compensated voltage can be generated with multiplying the rms value of the negative sequence transient current of the feeder by a settable compensated reactance, then combined with the magnitude of the zero-sequence voltage to consist of the compounded compensated voltage, which can be utilized to revise the characteristics of the inverse time-delay.

其基本保护采用零序过电压保护，动作时间采用反时限特性；在分析接地故障负序暂态电流分布特点的基础上，利用线路负序电流暂态有效值与一个可整定的补偿电抗相乘，形成补偿电压，并与零序电压幅值合成复合补偿电压，利用该电压对基本的反时限动作特性曲线进行修正，使零序过电压保护具有选择性。

The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection. On the basis of the analysis of the transient negative current, a compensated voltage can be generated with multiplying the rms value of the negative sequence transient current of the feeder by a settable compensated reactance, then combined with the magnitude of the zero-sequence voltage to consist of the compounded compensated voltage, which can be utilized to revise the characteristics of the inverse time-delay.

其基本保护采用零序过电压保护，动作时间采用反时限特性；在分析接地故障负序暂态电流分布特点的基础上，利用线路负序电流暂态有效值与一个可整定的补偿电抗相乘，形成补偿电压，并与零序电压幅值合成复合补偿电压，利用该电压对基本的反时限动作特性曲线进行修正，使零序过电压保护具有选择性。

"The quality of our products, which we were able to demonstrate by the excellent statistical data on faults per single units over a ten–year period, played in our favor" commented Fabrizio Pangrazi of the ABB Power Products division, Terna's account manager.

ABB电力产品部Terna客户经理Fabrizio Pangrazi评论道：我们的产品质量，这是我们可以在10多年时间里对每一台单独机器的故障而获得的优秀的统计数据证明了的，对我们的中标发挥了很大作用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。