The industry upgrade pattern of global value chain includes upgrade of technological process,product upgrade,function upgrade,and chain upgrade.
全球价值链的产业升级模式主要有四种:工艺流程升级、产品升级、功能升级和链条升级。
参考来源 - 有关全球价值链理论的研究综述·2,447,543篇论文数据，部分数据来源于NoteExpress
当一个产品升级后已有的产品被移除和替换。
When a product is upgraded, the existing product is removed and replaced.
在该阶段中调试问题比起半夜执行产品升级要容易的多。
It is far easier to debug an issue in this phase of your upgrade than in the middle of the night when you are likely performing the production upgrade.
如果让产品升级，就可以提高售价，那么利润也就更高了。
If we can upgrade the product, we'll get better prices and therefore high profits.
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