升级换代

/ shēng jí huàn dài /

1
updating and upgrading
... 塞翁失马,焉知非福Misfortune may be an actual blessing. 升级换代updating and upgrading (of products) 四十不惑Life begins at forty. ...
2
upgrading and updating
... 切削工具 cutting tool 升级换代 upgrading and updating 生产资料 capital goods ...
3
upgrading
升级换代upgrading 融语音、数据、图像于一体integratevoicedateandimage宽带高速信息网high-speedbroadbandinformationnetwork ..
4
scaling up
1.1网络搜索引擎—升级换代（scaling up）：本文详细介绍了我们的大型搜索引擎，据我们所知，在公开发表的论文中，这是第一篇描述地如此详细。

短语

1
产业升级换代
industrial upgrading
2
加快产业升级换代
expedite industrial upgrading
3
产品升级换代
upgrading and updating of products ; develop new generation of products

1
但是这种快速的升级换代对地球有很严重的影响。
But this rapid turnover is having a serious effect on the planet.
2
此外还要花费数十亿美元给现有的铁路升级换代。
Billions more will have to be spent on upgrading existing railroads.
3
如果有50%进行升级换代，将卖出四千八百万部。
If 50% upgrade, it will sell 48 million.

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