In practice, the splines in rear of first axle of transfer case are often worn out or deformed, failing to finish the normal transmission of power, which should be maintenance.
钻机车的分动箱一轴后端的花键常被磨损或变形，无法实现动力的正常传递，因此必须进行维修。
The fault reason of a transformer is analysed. The measures which should be adopted in transformer operation, maintenance and design are discussed.
对引起一台主变压器故障的原因进行了分析，探讨了在变压器运行维护及设计方面应采取的措施。
It also analyzes the relevant principles of digital devices and points out several problems of maintenance which should be noted when the digital equipment is in use.
对运城微波传输系统数字化改造情况进行了简单介绍，并对相关数字设备原理进行了具体分析，指出数字微波设备使用与维护应注意的几个方面。
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