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应铁道部邀请,以美国冻土协会主席布朗博士和国际冻土协会副主席、美国亚利桑那州立大学教授裴韦博士为首的美国冻土工程代表团一行15人,于1984年7月15日至8月1日来国访问。他们先后访问和参观了黑龙江省水利科学研究所、黑龙江省低温建筑科学研究所、牙克石林业勘测设计院、齐齐哈尔铁路科研所、铁道部科学研究院西北研究所和学中国科学院兰州冰川冻土研究所。现场考察了大兴安岭牙林铁路沿线的多年冻土和冻土观测站。
At the invitation of the Ministry of Railways, the 15-member U.S. permafrost delegation, led by Dr. Brown, president of the American Frozen Soil Association and vice chairman of the International Association of Frozen Pits, and Dr. Pei Wei, professor of Arizona State University, Visit China on the 1st of January. They successively visited and visited Heilongjiang Institute of Water Conservancy Science, Heilongjiang Institute of Low Temperature Building Science, Yakeshi Forestry Survey and Design Institute, Qiqihar Railway Research Institute, Northwest Institute of Science and Technology of Chinese Academy of Sciences and Lanzhou Institute of Glaciology graduate School. On-site inspection of the Daxinganling along the Julin Railway permafrost and frozen soil observation station.