约克郡沼泽铁路未能全速前进——志愿者运营铁路因高温火花风险改用柴油机车

（Not） full steam ahead on the Yorkshire Moors — 约克郡沼泽铁路未能全速前进

(Not) full steam ahead on the Yorkshire Moors

Rowan BridgeNorth of England reporter The North Yorkshire Moors Railway, which operates steam trains, says it’s switchin…