4-4-4-4
English
Noun
4-4-4-4 (plural 4-4-4-4s)
- Under the Whyte notation system, a duplex steam locomotive that has four leading wheels in a leading truck, two sets of four driving wheels, and a four-wheel trailing truck.
单词 | 4-4-4-4 |
释义 | 4-4-4-4 |
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