理工学科讨论群
本群不讨论政治、一般性的计算机技术，也不讨论过于宽泛的哲学话题。
谢绝民科、神棍与广告。
Online participants
Graph above shows the distribution of when exactly the participants of "理工学科讨论群" group are online.
The darker the color of the cell, the more members were online at that hour.
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