我房间的号码是七一五。
一个集体，是充满力量的源泉，他永远属于我们自己，七一班！
A collective, is the source of strength, he always belongs to ourselves, seven class!
根据“七一”水库优化调度实施成果，闸述了水库优化调度的任务与方法。
Based on the practical results of optimum dispatching for Qi-Yi reservoir, the task and the method of reservoir optimum dispatching were described.
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