We will usually work with only one robot at a time, however.
我们通常会与机器人在同一时间只有一个，但是。
Nearly everyone would want a dutiful, reliable robot helper, so why is there only one such humanoid made in this country? And why is it the work of a small team of unpaid students?
既然仿人机器人制造代表了高超的技术水平，为什么在美国研制者寥寥无几，而且开发的团队规模狭小，多数是一群没有报酬的学生？
Rescuers got a stark lesson after Utah's Crandall Canyon mine collapse in 2007, when nine people died. Only one mobile robot made it down a borehole and onto the mine's floor.
在2007年犹他州的CrandallCanyon矿井崩塌事故中，机器人营救员们就遇到了这样的尴尬：在这起有九人丧生的事故中，仅有一台移动机器人完成了地底钻洞和矿井登录的工作。
According to their creators, one robot that is only 30 centimeters tall has 20 joints in its body.
据它们的创作者表示，一个只有30厘米高的机器人身体里有20个接合点。
Using a micro-robot, by contrast, might involve only one incision and smaller surgical instruments.
相比之下，使用微型机器人可能只需要一个切口和更小的仪器。
Using a micro-robot, by contrast, might involve only one incision and smaller surgical instruments.
相比之下，使用微型机器人可能只需要一个切口和更小的仪器。
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