Unit pricing is a system that permits the customer to compare the costs of products.单位标价制是一种使顾客能够比较产品价格的制度。Dr Nussbaum is director of the Civil Liberties Research Unit at King's College, London.努斯鲍姆博士是伦敦国王学院公民自由研究中心的主任。The team work under the umbrella of the National Research Unit.这支队伍隶属于国家研究部门。