The electron oscillates parallel to the electric field and at the same frequency, but it does not necessarily oscillate in phase with the light wave.

该电子以相同的频率来作平行于电场的振动，但此振动不见得和原光波同相位。

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The pore must produce a strong electric field to hold the DNA in place.

要想固定dna，纳米孔就必须产生很强的电场。

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So once the fibre is drawn the researchers apply a very high electric field to it, causing the molecules to align as the fibre cools.

因此，一旦选出合适的纤维材料，研究者们就会将其放于高电场中，让纤维分子在其冷却过程中形成一致性。

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If we put a dipole that has the freedom to move, we put that dipole in an electric field, it will align itself with the field lines.

若我们将偶极释放到自由空间中，比如说放到电场里，他们会自动排序按同一方向。

麻省理工公开课 - 固态化学导论课程节选

You've got a magnetic field, maybe even magnetic susceptibility, the electric field. We're not going to worry about these magnetic fields or electric fields in this class So, pretty much we're going to focus on this set of variables here.

你也会引入磁场，或许甚至磁化率，以及电场，我们这堂课不需要关心,这些磁场或,电场之类的东西,基本上我们只关注,这里的一组变量。

麻省理工公开课 - 热力学与动力学课程节选

We can also do a similar thing, and I'll keep my distance from the board, but we can instead be holding x constant, for example, putting x to be equal to zero, and then all we're doing is considering the electric field as a function of t.

我们也可以做类似的事情,把x固定为一个常数,例如令x等于零，然后,考虑电场作为时间的函数,这种情况下，我们划掉。

麻省理工公开课 - 化学原理课程节选

The idea is to make the channel as thin as possible, allowing the electric field generated by the gate to penetrate the entire thing, thus improving the control that the gate is able to exert.

ECONOMIST: Transistors

The duo were inspired by the energy needs of people who would not have ready access to the electric grid, particularly soldiers in the field, who often carry as much as 20 pounds of batteries to power their communications equipment, laptops and night-vision goggles, according to the news release.

FORBES: New Technology: Could Your Shoes Power Your Cellphone?

Last week, Ford announced that the 2012 Focus Electric would be the pace car at the Richmond 400, making it the first all-electric pace car to ever lead the field for a NASCAR Sprint Cup Series race.

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