俄勒冈州塞勒姆的西海岸甜菜种子公司的前经理伯特在退休前帮助建立了这个系统。
George Burt, the former manager of the West Coast Beet Seed Co. in Salem, helped set up this system before he retired.
俄勒冈州塞勒姆的西海岸甜菜种子公司的前经理伯特在退休前帮助建立了这个系统。
George Burt, the former manager of the West Coast Beet Seed Co. in Salem, helped set up this system before he retired.
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