Demandre德曼德雷demandn.要求；需求v.要求；查问；需要demand of training培训需求demand correlation相关需求demand constraints需求约束demand obligations[经] 即期债务demand over supply供不应求demand for payment要求付款demands of readers读者需求Demands of service服务需求demand flexibility需求弹性demand for capital[经] 资本而求量