Read Edit View history 兰郑长管道 lánzhèngchángguǎndào Lanzhou-Zhengzhou-Changsha oil pipeline Origin Definitions Defs Strokes Stroke Words Sentences Sents 兰郑长管道 蘭鄭長管道 lánzhèngchángguǎndào Lanzhou-Zhengzhou-Changsha oil pipeline