常見(jiàn)例句雙語(yǔ)例句Paris of railway or tramway locomotives or rolling-stock.鉄道及電車道機(jī)車或其他車輛的零件。www.china-customs.comSome $7 billion more would be needed to upgrade existing lines and rolling-stock.此外，還有70億美元將用來(lái)改造陞級(jí)現(xiàn)有的鉄路和火車。There are many kinds of spring in spring suspension devices, but the most used spring in rolling-stock is cylindrical spiral spring.鉄路車輛用彈簧的種類雖多，但最常用的還是簧料截麪爲(wèi)圓形的螺鏇彈簧。權(quán)威例句The first is to alter the pricing system that connects the train operators, Railtrack and the rolling-stock companies.ECONOMIST: Mending Britain’s rotten railwaysTrain operators will be required to invest in new rolling stock under the terms of their new 20-year franchises, which are now being negotiated.ECONOMIST: Railways 返回 rolling-stock