筒阀 meaning in English

cylindrical valve

2 . analysis to the structure and function advantage of the ring gate adopted in the xiaolangdi hydropower plant was made in the paper . the result indicate that the ring gate is adaptive for the hydropower station constructed on the silt - laden river , especially for the station working to the regulate peak value , has an advantage
2 、对小浪底水轮发电机组的筒阀结构及功用特点进行了研究，结果说明对于多泥沙河流上的水电站，尤其是在电网中担任调峰和备用任务的电站，采用筒阀具有明显的优势。