The Ant might drive a nanobot through a series of piston strokes , rather like a car engine but on a scale many billions of times smaller .
“蚂蚁”或可通过一系列活塞冲程来驱动纳米机器人，这很像汽车的引擎，只是其尺寸是后者的数十亿分之一。
nanobot