Casio Fx-4800计算器在拉西瓦水电站尾水洞扩散段测量中的应用
Casio Fx-4800계산기재랍서와수전참미수동확산단측량중적응용
Application of Casio Fx-4800 Calculator to the Measurement in the Diffuser of Tailrace Tunnel at Laxiwa Hydropower Station