How to pronounce the slag hole?

Zhazidong concentration camp is located at the foot of Gele Mountain in Chongqing, 2.5 kilometers away from Baigongguan. Zhazidong was originally a small coal mine in the suburbs of Chongqing, named after more slag and less coal. Zhazidong is surrounded by mountains on three sides and ditches on one side, and its location is relatively hidden.

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Zhazidong Detention Center is divided into two houses, with wind dam in the inner court, 16 male prison and 2 female prison. Slogans such as "Youth is gone forever, think about it carefully", "Be clear here and now, don't cling to it", "Endless maze, turn back to the shore" and "Be patient with your heart and have no regrets" are hung on the wall of the inner courtyard.

The outer court is the office and torture room. There are slogans on the wall of the outer courtyard, such as "What the chief can't see, think, hear and do, we should see, think, listen and do for the chief".