| In Japan in 1953 and later, the activities to advance the performance of electric train-cars started corresponding to the introduction of new technologies from Europe and the United States and also corresponding to technology development by domestic manufacturers concerned. |
日本では1953年以降、欧米からの新技術移入や国内メーカーの技術開発に伴い、電車の高性能化の動きが始まった。 |