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联合国粮农组织松香技术顾问W.桑德曼教授(西德)应邀来华访问,于1983年5月9日到达北京,5月14日至27日在林化所讲课并进行学术交流。教授参观了各研究室和科研成果陈列室,了解了科研工作概况并向该所和来自全国各地从事松香、松节油科研、教学、生产的工程技术人员等60多人讲课共五次,内容为“世界松香松节油经济情况”、“脂松香加工和浮油松香”、“木松香和松香结晶”、“松香改性及其衍生物”、“松节油及其衍生物”。此外,又与林化所松香研究室及听课学员进行七次学术
Prof. W. Sandman, Rosin Technical Advisor, FAO, was invited to visit China. He arrived in Beijing on May 9, 1983 and gave a lecture on academic exchanges at the Forestry Institute from May 14 to 27. Professor visited the showrooms and scientific research showcase to understand the scientific research work and to the Institute and from all over the country engaged in rosin, turpentine research, teaching, production engineering and technical personnel more than 60 people lectures a total of five times, the content is “The world rosin turpentine economic conditions”, “gum rosin processing and slick rosin”, “wood rosin and rosin crystal”, “rosin modified and its derivatives ”, “turpentine and its derivatives ”. In addition, it conducts seven academic researches with the Rosin Rosin Laboratory and lecturers