It was the first time for the two to assemble the suits in zero-gravity as it is impossible to create a real zero-gravity condition on Earth.

这是首次是两个在飞行时的失重状态装配宇航服，在地球上创造一个真正的失重状态是不可能的。

youdao

Two guinea pigs then tested them in real zero-gravity conditions. The results were videotaped but are considered so sensitive that even Nasa was only given a censored version.

他说“两只小白鼠最后在真实的零重力条件下做了试验，并拍成了录像，但是考虑到非常敏感，美国宇航局只提供了剪辑版。”

youdao

Unfortunately, the standard definition of a second relies on what the atom does at a temperature of absolute zero. Real clocks need to run at room temperature, where the shell of electrons puffs up.

遗憾的是，一秒钟的标准定义依赖于原子在绝对零度的条件，而实际的时钟需要在室温下运行，室温条件下电子壳层膨胀了。

youdao

dT/dp is mu JT. So for a real gas like air, this is a positive number. It's not zero.

所以对于像空气这样的真实气体，这是一个正数，不等于零。

麻省理工公开课 - 热力学与动力学课程节选

But a real key in looking at these plots is where we, in fact, did go through zero and have this zero probability density.

是我们经历这些零值,而且有这些零概率密度,我们把它叫做节点。

麻省理工公开课 - 化学原理课程节选

u=0 And it's approximately equal to zero for all real gas processes.

在所有理想气体绝热过程中Δ,对真实气体近似为零。

麻省理工公开课 - 热力学与动力学课程节选

According to this calculation, rates could drop another full percentage point before the Fed hits "real" zero.

BBC: Analysis: The Fed's next move

Most urgently today, in contrast, and given what we here at BullionVault have long said about how real interest rates drive gold, sub-zero real rates look highly likely to keep driving gold until 2013 (and beyond) thanks to central bankers being obsessed with avoiding deflation.

FORBES: Gold Still Shines In A Deflationary World, Just Ask Paul Krugman

It is true that the bonds were sold at less than zero real yields.

FORBES: UK Government Bond Yields Go Below Zero