Distributed CAD is a technology which USES technology of distributed computing, database system, orienting the whole life circle of product design, manufacture and supporting dynamic model.
分布式计算机辅助设计技术是充分利用分布式计算技术、数据库技术、面向产品设计制造全生命周期，支持动态建模与产品性能设计的设计技术。
Companies are facing more risk when market new products due to the fierce competition, shortened product life circle and increased advertisement costs in the late part of 20th century.
20世纪中后期，随着市场竞争程度加剧、产品生命周期缩短以及广告费中日益增加，公司在推出新产品时面临越来越大的风险。
Chapter three analyzed the product life circle cost and discussed the cost component of product for quotation.
第二章首先分析了产品全生命周期成本的概念，探讨了面向报价的产品成本构成；
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