1.And the energy of the photon is also equal to Planck’s constant times the frequency.

并且光的能量也等于普朗克常频率。机翻

2.This time constant has all kinds of mathematical meaning that we can't get into right now.

这个时间常 具有我们现在无法理解的各种学含义。

3.And the energy of the photon is also equal to Planck's constant times the frequency.

光的能量也等于普朗克常频率。

4.And the time constant lets you know how long you need to press down on the accelerator to get there.

时间常让您知道您需要多长时间按器才能到达那里。

5.A large time constant means the opposite: that a lot of time is necessary to speed up and slow down.

和减需要大量时间。

6.Over time, constant acid leakage from heartburn may form scar tissue which narrows the esophageal tube, making it harder to swallow food.

随着时间的推移，胃灼热引起的持续酸渗漏可能会形成疤痕组织，从而使食道管变窄，使吞咽食物变得更困难。机翻

7.A small time constant means less time is needed to reach maximum speed, and also less time to slow down to a stop.

较小的时间常意味着达到最大度所需的时间更短，减停止所需的时间也更少。