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

如果想要让小机器人有腿，就需要促动器和会动的零部件。

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

这是我们使用的促动器之一，我现在给它施加一定的电压。

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

大家可以看到，促动器做出了蜷缩反应。

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

促动器是用只有一打原子差的一层铂制成的。

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。

Its main and secondary mirrors are flexible, but kept precisely in shape by a network of computer-controlled supports called actuators.

其主镜和副镜虽为柔性设计，但通过一套名为促动器的计算机控制支撑网络， 得以确维持形状。

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器，我现在所做的就是施加电压，于是它们就会摇摆，看起来就像是未来机器人军团的腿。

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.

而且促动器要有足够的灵活性，即能做到微观层面的弯曲，还会断裂，同时，它可以利用附着或移除一层原子所产生出来的力。