1. 柴油潛艇在水下只能航行非常短的時間，而核潛艇在水下航行的時間要長得多。
   A diesel submarine is able to cruise under water for a short period of time, but a nuclear one is able to cruise under water much longer.
2. 他們利用自己的實踐經(jīng)驗，設計了一臺氣冷柴油機。
   Drawing on their practical experience, they designed an air-cooled diesel motor.
3. 至于動力方式是采用“蒸氣式”抑或“柴油式”，我想貴公司將交由我方全權處理吧？
   And the propulsion method whether steam or diesel, you'll leave to us, I suppose?
4. 蒸汽機車已被柴油內(nèi)燃機車所取代。
   The steam locomotives were superseded by diesel units.

柴的英語翻譯：

油的英語翻譯：