黑土地上展雄风──东三省化学工业发展巡礼吴宁波，程建华美的东北平原由渤海之滨一直延伸到黑龙江畔。在煤海、林海，油田、粮田之上，茁壮成长着东北三省的化学工业。如果说东北三省是一个工业巨人，化学工业则成为他强壮的骨骼和流畅的血脉。位于祖国最北端的黑龙江省... On the black land, there is a show of progress: the development of the chemical industry in the three provinces of eastern China. Wu Ningbo, Cheng Jianhuan’s Northeast Plain is extended from the Bohai Sea to the Heilongjiang River. Above the coal sea and forest sea, oil fields and grain fields, the chemical industry in the three northeastern provinces thrives. If the three northeastern provinces are industrial giants, the chemical industry will become his strong bones and smooth blood. Located in the northernmost province of the motherland in Heilongjiang Province...