To manage two instances of a service, we propose toggling between one version and the other while introducing the new version.

要维护服务的两个实例，我们建议在引入新版本时在两个版本之间进行切换。

youdao

Therefore, while introducing foreign investment, China should develop new industries.

为此，在积极引进外资的同时，要着力培育新型产业。

youdao

Translated foreign novels in the late Qing dynasty, while introducing Western culture and thoughts, also had the features of Chinese classical novels.

清末外国小说翻译颇为兴盛，这一时期的译作介绍了西方的文化思想，但也具有明显的汉民族文化特征。

youdao

And some policies, such as a massive increase in state-funded child-care for the working poor, will raise costs while introducing new benefits traps.

ECONOMIST: From Beveridge to Blair

It will be Mr Oaten's task to maintain the Lib Dems' admirable concern for civil liberties, while introducing a new sternness on policing and anti-social behaviour.

ECONOMIST: Liberal Democrats

"It maintains the feeling of space that we've always tried to make the primary facet of our music, while introducing more diverse, and sometimes denser arrangements, " Wells says.

NPR: Exclusive First Listen: Lightning Dust