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标题: VOA慢速英语2014.05.19 [打印本页]

作者: Rebecca949    时间: 2014-5-20 08:58     标题: VOA慢速英语2014.05.19

[audio]http://sound.yywz123.com/tingbbs/voa/voa20140519.mp3[/audio]



It was a difficult job. Mr McLoughlin says the device had to have many small motors to have the ability to do what a human hand does. It also need to have human-like strength. The thumb was especially difficult because it permits the hand to hold objects. And everything had to fit into a space about the size of a human hand.这是一项艰难的任务.洛克林先生说,该设备必须有许多小马达,才能具有人手的能力.它还需要近似人类的力量.拇指是尤其困难的,因为拇指让手能抓住东西.同时它必须适合放入人手大小的空间里."
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作者: jessica-tang    时间: 2014-7-3 12:44

and use the patient first control the arms




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