a marsh in ancient times; in today's Shandong Province; betweem Heze and Yun Cheng
?【巳集上】【水部】 康熙筆畫:17畫,部外筆畫:13畫
《玉篇》力堆切《集韻》盧回切,音靁。澤名。通作雷。○按雷澤,地在城陽。