How many kinds of trains are there whose speed reaches 250 km/h and above?

时速达到250公里以上的火车有多少种？

youdao

If there were no windows, I wouldn't be able to tell when we were stopped or when we were traveling at 300 km/h.

如果没有窗户，我无法察觉什么时候停车，什么时候我们在以300公里每小时的速度前进。

youdao

K. was there to see H. Looking at her reflection in the glass storefront, she thought about the arrival of McDonald's years ago, when Taiping had been this excited too.

K去那里与H约会。 看着玻璃门中映着的自己，她想起来多年前麦当劳开业时候，太平同样热闹非凡。

youdao

There was more demand for twenty thousand other H-1Bs for those with advanced degrees.

VOA: special.2009.07.02

And if you work out the energetics as we've gone with thermochemistry, dH you discover there's a huge negative delta H.

如果你计算能量变化,就像在化学热力学中所作的一样，你会发现很大的负的。

麻省理工公开课 - 热力学与动力学课程节选

So our skeleton tells us that carbon is in the middle, so we'll put the h on one side, and the n on the other side there.

我们的骨架告诉我们碳原子应该放在中间，因此我们把氢原子放在一边，把氮原子放在另外一边。

麻省理工公开课 - 化学原理课程节选

There's a DVB-H tuner in there, too, but here's the best part: the phone's going to sport a nice, thick 16GB chunk of internal Flash -- in addition to a microSD slot!

ENGADGET: N96 leaked on Nokia's German site? Mobile

There was no H-P event at the hotel, the probe found.

WSJ: Allegations Against Hurd Included Leak of H-P Plans

It was there that Judge Harold H.

FORBES: For ATT, It's Deja Vu All Over Again, Even The Same D.C. Courthouse