When I do, you can see the actuator respond by curling up.

大家可以看到，促动做出了蜷缩反应。

This is one of our actuators, and I'm applying a voltage to it.

这我们使的促动之，我现在给它施的电压。

If you want legs for your tiny robot, you need actuators, parts that move.

如果想要让小机人有腿，需要促动和会动的零部件。

Well, the actuator is made from a layer of platinum just a dozen atoms or so thick.

促动只有打原子差不多厚的层铂制成的。

They are stimulated and motivated by discipline and direction.

他们受到纪律和上级指令的激励和促动。

She placed her hand to her forehead and breathed heavily; and then her rich, romantic lips parted under that homely impulse—a yawn.

她把手搭在前额上，喘着粗气；然后在那本能习惯的促动下，她那两片丰润而浪漫的嘴唇分了开来——打了个哈欠。

So here's a couple thousand or so actuators, and all I'm doing is applying a voltage, and they all wave, looking like nothing more than the legs of a future robot army.

这里大约有几千个促动，我现在所做的施电压，于它们会摇摆，看起来像未来机人军团的腿。

Then your actuator is flexible enough to bend to these small sizes without breaking, and it can use the forces that come about from just attaching or removing a single layer of atoms.

而且促动要有足够的灵活性，即能做到微观层面的弯曲，还不会断裂，同时，它可以利附着或移除层原子所产生出来的力。