The current status of one point, such as pressure, flow rate and flow don t change with time, intitules as the steady flow.

一个点上的水流状态，如压力、流速和流量不随时间变化而变化，称为恒定流。

youdao

It is a don 't-change-the-game-er, or yet a jolly-well-change-it-back-er: a traditionally mounted, handsomely furnished British period movie, available at a cinema near you in dead-level 2d.

它是一个“不改变电影规则者”，或是“令人满意地使电影返璞归真者”：一个被传统裱好的、被华美装饰的不列颠时期电影，它可以在离你很近的单调的2d影院中看到。

youdao

Do you know who your neighbors are? What about the person living 3 doors down? Most don 't-change that.

你认识你的邻居吗？住在3楼的是什么人？多数人都不知道-改变这种状况。

youdao

"If you don't like it, then change the channel." she said.

VOA: special.2010.08.06

It means that the properties of the system, the properties that describe the system, don't change in time or in space.

它的意思是指，用以描述系统的性质，不随时间或空间改变。

麻省理工公开课 - 热力学与动力学课程节选

So one of the things I would like to suggest is that you develop some good style here, and in particular, don't change types arbitrarily.

所以我的建议是,你们要养成一些好的编程风格，尤其是，不要反复无常的改变变量的类型。

麻省理工公开课 - 计算机科学及编程导论课程节选

Presidential speeches aren't important because they don't change public opinion or policy.

BBC: What's the point of presidential speeches?

Gaining weight or getting a nose job won't fool the system, Visionics claims, because skull dimensions don't change.

FORBES: Spotting Evil

Perhaps it is the old Obama cool: Don't change the strategy because of a few bad figures, keep your powder dry until next year, don't shoot until you see the whites of their eyes and all that.

BBC: Obama needs to hone economic message to win in 2012