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

You should also look at how many hours per use case point (h) are needed.

您还需要查看每一个用例点需要多少个小时(H)。

youdao

H: I don't understand how people can think Dr. Kevorkian is doing the right thing.

海伦：我真搞不懂人们怎么会认为凯渥肯医生所做的事情是正当的。

youdao

How do we go from that experiment to H the terms that we're trying to get, these slopes.

我们怎样从实验得到我们想要的量？,记住，我们想要得到Δ

麻省理工公开课 - 热力学与动力学课程节选

And so we can actually think about how do we calculate what the dissociation energy should be for h 2, so let's go ahead and do this.

因此，我们其实可以想到应该如何计算,氢分子的离解能，那么我们开始做一下吧。

麻省理工公开课 - 化学原理课程节选

But how do we get to 1861 and that secession crisis with Alexander H. Stephens delivering this Cornerstone Speech, declaring that, "Hey folks, it's all about slavery and its preservation?"

但事情怎么会演变到1861年那样,乃至之后的分离危机,亚历山大为何能在这篇演讲中,宣称,"嘿,伙计们,今天我要讲的是奴隶制和对其保护"

耶鲁公开课 - 美国内战与重建课程节选

Records from Centre County's probation department and juvenile courts tell part of the story of how Matt H.

CNN: Letters by Sandusky, wife blame everyone else

Market conditions will dictate how many H-1B employees are necessary.

FORBES: Drive Business Back To The U.S., Reform H-1B Visa Laws

Try basketball, just to learn how to spell H-O-R-S-E.

WSJ: Jason Gay: Building a Child Sports Prodigy (Kidding)