Hydrail是个新词。
Hydrail is the generic term denoting all forms of rail vehicles, large or small, which use on-board hydrogen as a source of energy to power the traction motors, or the auxiliaries, or both.
可以翻译为【氢铁】。
In March, Germany conducted successful tests of the world's first "Hydrail" - a hydrogen powered, zero-emission train.
3月份,德国成功测试了世界上第一辆“氢铁”,这是一种零排放的氢气动力火车。