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应德国哈斯（Haas）工程咨询总公司邀请，中国交通部公路考察团于1995年5月28日至5月对日对哈斯公司进行了访问，参观了哈斯公司总部和哈斯公司有代表性的专业技术部门和高新技术应用。考察团考察了哈斯公司承担的A2高速公路和汉诺威──柏林高速铁路施工工地以及德国东部地区
At the invitation of Haas Engineering Consulting Corporation of Germany, the Chinese Ministry of Transportation Highway Mission visited Haas from May 28 to May 1995 and visited Haas headquarters and Haas Company. Representative professional and technical departments and high-tech applications. The delegation inspected the A2 motorway undertaken by Haas Company and Hannover-Berlin high-speed railway construction site and the eastern part of Germany