故障的

But plenty of information is contained in the high frequency field of the fault signal.

然而高压输电线路故障后，信号的高频频带含有丰富的故障信息。

So, the more overall research on the fault testing and diagnosing is significant.

因此，对FPGA器件的故障测试和故障诊断方法进行更全面的研究具有重要意义。

This expert system can distinguish fault patterns,analyze fault reasons and put forward proposals by using this expert system to commutator of some fluid drive system . The result basically conformed to the reality, and it had the very good true value .

运用本专家系统对某液压传动系统的换向阀进行分析和诊断，结果表明该专家系统能对提升机进行故障诊断和故障原因分析，运行结果基本符合实际，具有很好的实用价值。

The digital simulation can be used to obtain correct fundamental and third harmonic zero sequence voltages at the neutral and the terminal of the generator and flexiblely study the characteristics of various generator stator ground fault protection schemes.

为了研究这类方案，需正确地了解正常与故障条件下中性点与机端零序电压的分布情况。由于不可能在真机定子绕组上人为设置接地故障点，从而给继电的保护研究和调试带来了困难。

Besides this, we have studied the special function and significance of impulse vibration signal in the gear case's malfunction diagnose.

承、齿轮、轴系三类零件各自的故障特征信号，同时研究冲击振动信号在齿轮箱故障诊断中的特殊作用和意义。

The simulation signal and experimental results show that this method can effectively diagnosis the faults of the gearbox.

通过仿真信号和对齿轮磨损故障实验信号的分析，表明该方法能有效地诊断齿轮的故障。

Finally, according to the specific situation of 2# hydroelectric generating set at Daxia hydropower station, the test spots are arranged suitably, and sensors are chosen accordingly.

再次，根据水电站具体情况，研究了水轮发电机组状态监测与故障诊断系统的设计原则，并在此基础上构建了大峡水电站状态监测故障诊断系统的整体结构。

Because continue wavelet transform has choiceness characteristic, the harmonic measure department of fault record equipment has been ameliorated and every frequency with time field and frequency field double characters.

利用由录波器记录的故障前后各数据获得正常运行及故障后的电压、电流及其序分量，进而求解本侧系统阻抗和对侧系统阻抗。

The method of reliability numerical simulation has been presented based on the system invalidation,whose logic hypotaxis is fault tree. By replacing the structure function of the fault tree with the cuts, the course of calculation has been simplified and the computer arithmetic has been optimized.

摘 要：提出了基于系统失效性，以故障树为仿真逻辑关系的可靠性数字仿真方法，并且利用割集对故障树中的结构函数进行了替代，大大简化了仿真计算步骤，优化了计算机算法。

An expert system is proposed to diagnose faults of platform inertial navigation system.

分析了导航系统对故障诊断的基本要求以及导航系统的故障诊断方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。