坝轴线 meaning in Chinese

axis of dam
dam axis

Gaobazhou water conservancy project is the most downstream hydropower station in the 3 cascade development qingjiang mainstream , total installed capacity 252mw , total reservoir capacity 430 million - m3 , maximum dam height 57m , length of dam axis 439 . 5m , total static investment rmb 623 . 48 million ( 1998 price )
高坝洲水利枢纽是清江流域三级水电站的最下游一级水电站，电站总装机容量252mw ，总库容4 . 3亿m ~ 3 ，最大坝高57m ，坝轴线长439 . 5m ，静态总投资( 1988年价格) 62348万元。