roll·ing stock
noun/ˈrəʊlɪŋ stɒk/
/ˈrəʊlɪŋ stɑːk/
[uncountable]- the engines, trains, etc. that are used on a railway
机车车辆 (包括铁路机车、车厢等) - The rail company is investing in new rolling stock.
该铁路公司正投资购买新的车辆。
- The rail company is investing in new rolling stock.