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弗里曼,J.R.(John Ripley Freeman,1855-1933年),生于美国缅因州,美国土木和机械工程师。1876年毕业于麻省理工学院土木系。在任波士顿火灾保险公司工程师和特别检查员期间,研究防火设备的改进和标准化工作。1893-1915年间先后任波士顿土木工程师学会主席、马萨诸塞州查理士河堵截海湾潮汐工程的总工程师、美国机械工程师学会主席、美国土木工程师学会主席。弗里曼是近代水工试验的代表人
Freeman, J.R. (John Ripley Freeman, 1855-1933), was born in Maine, United States, United States Civil and Mechanical Engineer. 1876 graduated from MIT Department of Civil Engineering. During her time as a Boston Fire Insurance Company engineer and special inspector, she studied the improvement and standardization of fire protection equipment. From 1893 to 1915 he served as Chairman of the Boston Society of Civil Engineers, Charles River, Massachusetts, the Chief Engineer intercepting the Gulf Tidal Project, the president of the Institute of Mechanical Engineers, chairman of the American Society of Civil Engineers. Freeman is the representative of modern hydraulics experiment