VOA慢速英语2015.05.19 机器人, positive, bottom, English, provide

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"One component sank to the bottom and anchored itself while the other component had a brightly-colored orange ball which would float to the surface and provide a positive identification to the passerby or the authorities to let them know there's an object down there and we'd marked it."____________________And that's the Technology Report from VOA Learning English. I'm Jonathan Evans.森巴布说,"机器人的一个部件会沉到底部然后固定住,而安装了亮橙色球的另一个部件会浮上水面,让有关人员能够正确辨认,并让有关人员知道,水下有东西而且机器人已经对其进行了标记."_____________________以上就是本期美国之音慢速英语科技报道的全部内容.我是乔纳森`埃文斯.

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