如果在制造上投机取巧，草草完工，是对物料的浪费；这样做出来的产品使用周期很短，很快就不得不修缮或者淘汰。
It is just a waste of materials to make things badly, that will have to be repaired or replaced after just a short lifetime.
每一种新产品都会有一个相对较长的使用周期。
它由定义明确的阶段和产品生命周期使用的管理方法组成。
It consists of well-defined stages and approaches used by management as a product goes through its lifecycle.
应用推荐