柴油

1. 柴油潜艇在水下只能航行非常短的时间，而核潜艇在水下航行的时间要长得多。
   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. 他们利用自己的实践经验，设计了一台气冷柴油机。
   Drawing on their practical experience, they designed an air-cooled diesel motor.
3. 至于动力方式是采用“蒸气式”抑或“柴油式”，我想贵公司将交由我方全权处理吧？
   And the propulsion method whether steam or diesel, you'll leave to us, I suppose?
4. 蒸汽机车已被柴油内燃机车所取代。
   The steam locomotives were superseded by diesel units.

柴的英语翻译：

油的英语翻译：