Title: Zhi zhe le shui
Description: Ben shu yi shi jian wei xian suo, zai li shi bei jing de chen tuo xia, ti xian chu lin bing nan xian sheng xue shu cheng chang de bu fan jing li, fan ying chu ta de zhuo yue cheng ji he tu chu gong xian.
Subjects: Hydraulic engineers, Biography, Hydraulic engineering
Places: China
People: Bingnan Lin