[, ] () the idea that the demand for sth, such as a natural material used to produce sth, depends on the demand for the final goods produced 派生需求，延伸需求（由於对某一产品的需求而引致对另一产品的需求）◆A car manufacturer has a derived demand for manufacturing equipment, components, steel, etc. so that it can satisfy its customers. 汽车制造商对生产设备、零部件及钢铁等的派生需求是为了能够满足顾客的需要。