When the real Sun was visible, however, the birds maintained a constant direction as it moved across the sky.

但是，当它们可以看到真正的太阳时，在太阳横跨天空移动时，这些候鸟保持固定的方向。

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Thanks to special contact lenses, computers in your clothes and locational sensors scattered everywhere you go, you see a constant stream of text and virtual sights overlaying the real world.

感谢特殊的隐形眼镜、藏于衣服内的电脑和分散于你到过的各处的位置传感器，你可以看到一个恒定不变的信息流和覆盖于真实世界之上的虚拟景象。

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Indeed, as Gregory Clark shows in a Farewell to Alms, real wages increased, interest rates stayed nearly constant, and rents on land also stayed almost unchanged.

事实上，就像格雷戈里·克拉克在他的《告别施舍》里所说那样：实际工资增加了，利率基本没有变，地租费也几乎保持了不变。

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And in something like a consumer internet company like Facebook, that constant real time interaction and experimentation is something that the very best entrepreneurs do.

像脸谱网这样的,用户导向型的互联网公司，即时交流，不断试验,是企业家最佳的生财之道。

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If you have a real gas and you write du is Cv dT and your path is not a constant volume path, then you are making a mistake. But for an ideal gas, you can always write this. And this turns out to be very useful to remember.

对于真实气体，如果其变化过程,不是恒容的，du=Cv*dT就不成立，但对于理想气体,这条规则永远成立,这一点非常有用，请记住。

麻省理工公开课 - 热力学与动力学课程节选

The right ones demand creating within the corporate framework a space of genuine creative chaos without clear goals, where repeated failure is a real and constant motivator.

WSJ: The Trouble With Tinkering Time

Now Rypple is launching a new feature for companies called Rypple Flow, which is basically a constant real-time stream of activity in a company that is piped in over an HD television.

FORBES: Rypple Flow Is Social HR Management On A Big Screen

Still, there's a real downside to these constant references to the living dead.

WSJ: Why Zombies Are Everywhere