CKD9型机车是大连机车车辆有限公司根据巴基斯坦铁路要求设计制造的干线客、货运两用内燃机车。
CKD9 locomotive, designed and manufactured by Dalian locomotive and Rolling Stock co., Ltd. for Pakistan Railway, is a trunk passenger and freight diesel locomotive.
大连机车车辆厂研制的东风4D系列内燃机车，是以240/275ZJD系列柴油机为动力的一组机车的统称。
DF4D series Diesel Locomotives designed and manufactured by Dalian Locomotive Works, are a group of locomotives that utilize 240/275ZJD series diesel engines.
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