以拉西瓦水电站进水口快速闸门模型试验为例，简要阐述了步进电机的工作原理。
It briefly describes the working principle of stepping motor based upon the gate tests at the intake tunnel for Laxiwa hydropower project.
分析了水电站进水口工作闸门埋件安装过程中遇到的问题及解决方法。
The problem come forth in the installation process of imbed parts of slab gate at the inlet of hydropower station and its treatment were analyzed.
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