笔者到上海出差,发现上海街道上的助力车明显增多,在上下班期间,助力车能占自行车的1/4以上。助力车也叫摩托自行车,严格地讲,不能叫作轻便摩托车,这是一种将小排量汽油发动机安装在自行车上的机动、脚踏两用车辆。上海流行助力车由来已久,早在60年代,上海水久103摩托自行 The author went to Shanghai on a business trip and found that the number of mopeds on the streets of Shanghai increased significantly. During the commuting hours, mopeds can account for more than a quarter of the bicycles. Mopeds are also called motorcycle bikes. Strictly speaking, they cannot be called mopeds. This is a motorized, dual-purpose bicycle that uses a small-displacement gasoline engine mounted on a bicycle. Shanghai popular bicycles have a long history. As early as the 60s, Shanghai Shui Jiu 103 Moto