论文信息 - 7. Penstocks; Materials; Penstock Jointing; Valves; Penstocks – Sizing and Costing - 字舞流文

7. Penstocks; Materials; Penstock Jointing; Valves; Penstocks – Sizing and Costing

[1] Ray Holland. Micro Hydro Electric Power: Technical papers 1 , 1983 .

[2] L. Richard,et al. Data collection in developing countries , 1982 .