English Dictionary

4-8-4

noun

Under the Whyte notation system, a steam locomotive that has four leading wheels arranged in a leading truck, eight coupled driving wheels and four trailing wheels in a trailing truck.

The locomotive is classified as a 4-8-4 under the Whyte notation system.

意味（1）

Under the Whyte notation system, a steam locomotive that has four leading wheels arranged in a leading truck, eight coupled driving wheels and four trailing wheels in a trailing truck.