With the development of industries, rivals are more and more fierce. Product life cycle shortens. Thus firms need to reply to competitive pressures from a flow of substitutes.

 
  • 随着行业的发展,行业市场竞争越发激烈,产品生命周期缩短,企业需应对不断涌现的替代产品所带来的竞争压力。
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