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The ancient capital Luoyang site in today s Henan Province has recently discovered over 80 meters of water channels dating back to the Wei and Jin dynasties (220-420).
It indicates the mature techniques of building water conservancy facilities and the dynasties capability of water resource utilization and environmental upgrade back then.
ZHENGZHOU, Jan. 7 (Xinhua) The ancient capital Luoyang site in today Henan Province has recently discovered over 80 meters of water channels dating back to t