“水力發电”杂誌1957年第1及第14期上分別刊载了丁浩教授和乐鸿儒同志关于确定水輪机蝸壳外形尺寸的兩篇文章,文中各自叙述了金属蝸壳尽寸的簡易求法。一般來說,使用那兩篇文章中所述的方法均比列表計算节省一些时間,但还是不免有如下一些缺点: Hydropower, 1957, No. 1 and No. 14, respectively, published Professor Ding Hao and Comrade Le Hongru scroll scroll to determine the size of the two articles, each describes the metal scroll to make a simple method . In general, using the methods described in those two articles saves some time compared to the list calculation, but still has the following disadvantages: