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·综 述·关于浆体的管道输送…………………………………………………………………………张怀法国内外减阻剂研制及生产新进展………………………………………………李国平 杨睿等提高东北管网经济效益的思考……………………………………………………张 帆 高庭禹中国LPG船运
· Overview · Piping on slurry ................................................................ Zhang Huai Development and production of drag reducer both in France and abroad ... ................................................... Li Guoping Yang Rui and other thinking to improve the economic benefits of the northeast pipe network ......................................................... Zhang Fan Gao Tingyu China LPG shipping