延: prolong; extend; protract车公里: vehicle kilometres百万车公里: million vehicles kilometer mvk车公里成本: vehicle-kilometre cost货车公里: freight car kilometers; wagon kilometers机车公里: engine kilometer; locomotive kilometers; locomotive kilometrage; unit kilometer客车公里: coach kilometer; passenger car kilometers空车公里: empty car kilometrage; empty wagon kilometers列车公里: train kilometer汽车公里数: kilometerstand行车公里数: vkt vehicle kilometers of travel重车公里: loaded wagon kilometers本务机车公里, 列车公里: lead locomotive kilometers调车机车公里: shunting engine kilometer货车日车公里: car kilometers per car per day货车重车公里: loaded freight car kilometers机车日车公里: average daily kilometrage of locomotive列车公里密度(每公里线路的列车公里数): train kilometre density车公里限额管理: management of vehicle kilometrage quota货物列车公里数: freight train kilometers客车平均日车公里: average car-kilometers per car-day每车公里货运密度: tons per truck kilometer; tons per truck-kilometer每车公里客运密度: passengers per bus kilometer; passengers per bus-kilometer汽车百车公里油耗: vehicle fuel consumption per hundred kilometers重车公里对总车公里百分率: percentage of loaded wagon kilometres to total wagon kilometres