截至目前，该系统已安全运行近十年，有效的缓解了布尔津县冬季水电出力不足的问题。
Up to now, the system has operated in safety for nearly ten years, effectively relieving the problem that the hydropower capacity in Buerjin County is insufficient in winter.
布尔津县以水力发电为主，托洪台水电站为布尔津县的骨干电源，现有装机近两万千瓦。
Buerjin County depends on hydropower generation and its key power source is Tuohongtai Hydropower Station, whose existing installed capacity approximates to 20MW.
方法：分别在新疆吐鲁番市区和布尔津县两地采用随机整群抽样的方法，抽取9~12岁儿童478名。
METHODS: A total of 478 children at age of 9-12 years from Tulufan City and Buerjin County of Xinjiang Province were enrolled by random cluster sampling.
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