This not only seriously hinders the course of industrialization and urbanization of our country, but also causes many hidden troubles for social instability.

这不仅严重地阻碍了我国工业化、城市化的进程，而且也给社会的不稳定埋下了诸多隐患。

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The drainage system in Qingxi Hydropower Plant originally adopted conventional relay control for its pump control system, which had many hidden troubles and resulted in multiple failures.

青溪水电厂排水系统的水泵控制系统原设计采用旧式常规电动机控制系统，投入运行后多次出现故障，存在许多安全隐患。

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It overcomes many shortages of former system, such as simplicity of control mode, many hidden troubles, high-frequency accidences, frequent stops, bad system stability, great accident danger.

克服了原系统控制方式简单、隐患点多，事故频发，停机频繁、系统稳定性差、存在极大的事故隐患等诸多缺点。

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