柴油机车(Diesel Locomotive, DL)：柴油机车用柴油作为燃料。柴油机车有三种：包括电动柴油机车，机械柴油机车和液压柴油机车。
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柴油机车生死战 Diesel and Death
液压传动柴油机车 diesel hydraulic locomotive
矿用柴油机车 diesel mine locomotive
隧道用柴油机车 tunnel diesel locometive ; Locomotive tunnel diesel
井下用柴油机车 diesel underground locomotive
液力传动柴油机车 dieselhydraulische Lok ; [铁路] diesel-hydraulic locomotive
柴油机客车 diesel-engined passenger car
小型柴油机车 size diesel locomotive ; small-size diesel locomotive
机车柴油机 locomotive diesel engine ; locomotive engine ; trammer diesel ; diesel engine
与柴油机车相比，运行成本只有5%，电动车将很快成为一个看上去更可行的选择。
And with running costs as little as 5% those of diesel models, electric cars will soon start to look like a more viable option.
梅赛德斯称这种新柴油机车即将投放美国市场，其燃油经济性要比同价位的汽油机车要高20 - 40%。
Mercedes claims the new diesel engines it intends to put on the American market will also be 20-40% more economical than their petrol equivalents.
研究小组将高速列车同汽车，火车（美国的全国铁路乘客公司的柴油机车）以及飞机的排放周期进行了比较。
The team compared the lifecycle emissions of high-speed electric rail with transport by car, by heavy rail (the Amtrak diesel system) and by air.
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