消息服务类似于一流的中间件原则。

Messaging services are analogs of the classic middleware concept.

youdao

这位保守的亚利桑那人周遭一片混乱，看到他还能保持冷静并坚持自己的原则是一件颇令人吃惊的事情。

it is stunning to see a conservativeArizonan keep his head and stick to his principles while all around him ischaos.

youdao

还不相信这个原则适用于每一件事？

Not convinced that this principle applies to virtually anything?

youdao

And when we make these comparisons, one thing I want to point out is that we need to keep the constant principle quantum number constant, so we're talking about a certain state, so we could talk about the n equals 2 state, or the n equals 3 state.

当我们做这些比较时，我想指出的一件事是,我们需要保持常量原则,保持量子数是常数，所以我们在讨论一个确定的态时，我们可以谈论n等于2的态，或者n等于3的态。

麻省理工公开课 - 化学原理课程节选