故障

In this paper, Frequent fault diagnosis of the reducer are generalized through a great deal fault-cases of reducer were collected, and the fault mechanism and the vibration characteristics of the pivotal parts of gear and bearing are introduced in detail.

本文首先通过对减速机故障的大量调查及信息搜集，对减速机故障诊断中出现的主要问题进行了详尽的分析，特别对减速机易出现故障的关键部件轴承和齿轮的诊断机理进行了研究。

The failure characteristics of large pump units are that the influence is great, the reasons are complicated, it is difficult to observe and the failure rate is hard to determine. The main failures of large pump units are as follows: burn out of thrust bearing liner of the motor, failure of stator and rotor coil insulation of the motor, wear-and-tear of guiding bearing and shaft neck of the pump, breakdown of adjusting mechanism of the pump blade, and pump cavitation. The reasons of main failures are studied in design, structures, installation and operation etc.

分析了大型水泵机组故障的特点：影响大、原因复杂、隐蔽性强和故障率确定难；确定了主要故障形式：电机推力瓦烧损，电机线圈绝缘失效，水泵导轴承及轴颈磨损，叶片调节机构失效，水泵汽蚀；从设计、结构、安装和运行等方面研究了主要故障的原因。

If global air-failure and valve is kept as FC, steam to reboiler will fail close, reflux will fail open, hence likely that safety valve will not blow.

如果整体气源中断，而阀保持故障关，到再沸器的蒸汽将故障关闭，回流将故障打开，因此有可能安全阀不会打开泄放。

This paper introduces the operation principle and a travel fault accident of variable-speed DC drives system for the car puller of car dumper system in Jiangxi Fengcheng power plant,finds and analyses the potential reason,summarize it was caused by the wrong of PLC analog output module,and proposes some suggestion about variable-speed DC drives system maintenance.

简要介绍了丰城电厂翻车机系统拨车机直流调速系统工作原理及一次拨车机行走异常故障，对各种可能故障因素进行查找分析，归纳出由于PLC模拟量输出模块故障导致拨车机异常行走的结论，并对同类直流调速系统的维护工作提出了建议。

The paper introduces a speedy effective way how to solve winch location jump by modifying SD drive control and PLC program after main hoist of panyi coal mine hoists appears depth indication fault.

提升机是矿井主要机电设备之一，确保其安全正常运转，提高工作效率，降低故障影响时间至关重要，文章介绍了潘一主井提升机出现深度指示故障后通过修改SD传动控制及PLC程序解决绞车位置跳变故障的一种快速有效的方法。

Moreover, this paper introduces the analysis and design of automation system of the production line at length, including the spot controlling unit, the central controlling unit, hardware and software, communication connecting and electricalcontrol. Also introduces the technique analysis and controlling method design of the raw material preparation, rotating kiln system and coal powder preparation. Describes the system design in detail, such as the main control interface, the system main interface, the system flow diagram, group start and stop, equipments selecting, emergency and fault reset, alarming picture, tendency picture, speed setting, raw material feeding, feeding operation, production reporting table and so on.

接着，论文对该生产线自动控制系统进行了详细地设计分析，包括现场控制部分、中央控制部分、软硬件部分、通讯连接部分和电气控制部分；对生料制备系统、回转窑系统和煤粉制备系统进行了工艺分析和控制方法的设计；并对系统主要控制界面，系统主界面、系统流程图、组起/组停、设备选择、故障复位、故障紧停故障消音、报警画面、阀门操作、趋势画面、转速设定、生料喂料、喂煤操作、原料喂料、生产报表等做了设计介绍。

There are 120 kinds of faults occurred in double circuit lines, for the existence of the cross country fault s.

但是，由于同杆双回线会发生跨线故障，致使同杆双回线的故障种类多达120种，并且同杆双回线的故障计算和分析十分复杂。

The article introduces two arithmetic of partial differential,and analyses the method of using compare the current vector of coupler breaker,and provides sampling arithmetic and vector arithmetic.

母线微机保护装置已发展的比较成熟，装置通用的选择故障母线的方法是利用总差动和分差动相配合；文中介绍了利用分差动选择故障母线时的两种算法，分析了利用母联电流方向比较元件选择故障母线的方法，并从瞬时值方面和向量值方面提供了两种算法。

The damage analysis of cracked turbine disk in the rocket engine is described. From a series of analyses, the causes of failure were reasoned through calculation and experiments, fatigue analyses which include stimulating vibration test and fatigue strength calculation were emphasized.

针对某火箭发动机涡轮盘在热试车中出现的裂纹故障，进行全面的分析，准确定位故障类型，以试验和计算分析给出合理的故障原因，重点是在疲劳分析方面所做的工作，包括振动模拟试验、疲劳强度计算，并根据疲劳强度分析结果提出改进方案。

When left when the test-drive after repair in shop main engine is adding this ship to 540r/min, supercharger occurrence asthma brace up phenomenon, rotate speed lifts slightly again, noise shakes very big, smoke evacuation temperature is normal, hair of on the high side of temperature of air inlet duct is very hot, as good as of smoke evacuation smoke constant, supercharger rotor rotate speed and the rotate speed of right leader supercharger that work normally comparative. 2 breakdown analyse this model diesel engine supercharger breathes heavily brace up the reason has the following sides. Bearing of 1 supercharger rotor damages, bring about on the low side of supercharger rotor rotate speed or wave motion, make inadequacy of compressor part air feed and diesel engine and its demand do not match, bring about air current not to stabilize generation to breathe heavily brace up. 2 diesel engine offers oil, match gas to time forbid, match gas, draw well time and disorder, bring about supercharger to breathe heavily brace up. 3 supercharger nozzle jams, cause smoke evacuation not free, circumfluence of exhaust stroke waste gas, enter jackknife of new energy of life with the below one stroke that take energy of life, produce air current to hit generation to breathe heavily brace up. Canal of 4 smoke evacuation jams, smoke evacuation not free, bring about waste gas circumfluence, hit generation of new energy of life to breathe heavily brace up. 5 jams into gas mouth, enter gas inadequacy, generation breathes heavily brace up. 3 trouble removal are based on above analysis, adopt the following measure to remove trouble.

该舰在厂修后试车时左主机在加至540r/min时，增压器出现喘振现象，转速再略升高，声响震动很大，排烟温度正常，进气管温度偏高发烫，排烟烟色无异常，增压器转子转速和正常工作的右主机增压器转速相当。2故障分析该型柴油机增压器喘振的原因有以下几个方面。1增压器转子轴承损坏，导致增压器转子转速偏低或波动，使得压气机部分供气不足和柴油机及其需求不匹配，导致气流不稳定产生喘振。2柴油机供油、配气定时不准，配气、发火定时紊乱，导致增压器喘振。3增压器喷嘴堵塞，导致排烟不畅，排气冲程废气回流，和下一进气冲程进新气重叠，发生气流冲撞产生喘振。4排烟管堵塞，排烟不畅，导致废气回流，冲撞新气产生喘振。5进气口堵塞，进气不足，产生喘振。3故障排除基于以上分析，采取以下办法排除故障。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷