针对过程控制仪表常见的故障现象、造成原因、判断处理的方法进行总结和分析。
The familiar fault phenomena, causes, judgment and treatment methods of process instruments are summarized and analyzed.
投影机在使用过程中，会出现各种各样的故障，可根据故障现象判断其发生的原因，从而及时解决问题，提高使用效率。
Projector may occur various malfunction when in use. Judging the cause of its occurrence according to the breakdown phenomenon we can solve the problem in time and increase its efficiency.
阐述了小电流接地系统接地的特点并对其故障现象进行分析、判断。
The characteristics of ground-fault of ungrounded system are given and the faults symptom is analyzed and judged.
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