LJ ship with computer surveying flow system is the hydrology test instrument which can volunteer to complete sounding,surveying velocity,surveying calculation and so on.

• LJ船用微机测流系统是能自动完成测深、测速、流量计算等一系列工作的水文测验仪器,经过哈尔滨水文站检验,证明该系统可以在大中河流测站使用。