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。
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。
With the network being a new platform expressing public opinion about food safety, many problems and hidden troubles have emerged.
网络在成为新的舆情平台的同时，也带来了许多问题和隐患。
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