杭州西湖游船历来都靠人划,劳动强度大,遇到风浪,行船就很困难。伟大的无产阶级文化大革命和批林批孔运动激发了广大游船工人的社会主义积极性,他们决心改变人划船的落后面貌,革新成机动船。但是汽油机船和柴油机船,噪声大,对湖面污染严重,他们又把机动船改装为电并船。由于一般的电并游船是用串联电阻来调速,调速不明显,耗电能大,所以一次航运时间短,不能满足广大工农兵和外宾游览的需要。 Hangzhou West Lake cruise ships have always depended on people planning, labor intensity, encounter waves, it is difficult to sail. The Great Proletarian Cultural Revolution and the Lin Piao and Confucius Movement inspired the socialist enthusiasm of the majority of cruise ship workers. They are determined to change the backwardness of people’s rowing and to transform them into motor boats. However, gasoline and diesel engine boats are noisy and have serious pollution on the lake. They have also converted the motorized vessels into electricity. As the general electric cruise ship uses a series resistor to adjust the speed, the speed is not obvious, and the power consumption is large. Therefore, a short shipping time cannot satisfy the needs of the vast number of workers, peasants, and foreign guests.