结论胃食管反流病患者生活质量明显下降。
Conclusion The life quality of GERD patients decreased obviously.
晶闸管变流装置的应用，使电力系统的自然功率因数下降。
Because of application of rectifier set, the natural power factors were decreased.
晶闸管变流装置的应用，使电力系统的自然功率因数下降。
Because of application of rectifier set, the natural power factors were decreased.
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