亚洲免费av电影一区二区三区,日韩爱爱视频,51精品视频一区二区三区,91视频爱爱,日韩欧美在线播放视频,中文字幕少妇AV,亚洲电影中文字幕,久久久久亚洲av成人网址,久久综合视频网站,国产在线不卡免费播放

        ?

        The AI robot dog that's training to explore caves on Mars

        2021-06-04 06:13:12廣東謝浩英
        瘋狂英語·新讀寫 2021年5期

        廣東 謝浩英

        題材機(jī)器狗 新聞報(bào)道體裁 文章詞數(shù) 建議用時(shí)313 6分鐘

        難詞探意

        1.exploration /,ekspl?'re??n/ n.探測(cè)

        2.virtual /'vз?t?u?l/ adj.虛擬的;模擬的

        3.tunnel /'t?nl/ n.隧道;地道

        4.radiation /,re?di'e??n/ n.輻射

        Marsexplorationis going to the dogs.Scientists are equipping four-legged, animal-mimicking robots with artificial intelligence (AI) and sensing equipment to help them explore caves on Mars.

        In a presentation at the annual meeting of the American Geophysical Union (AGU) held online, researchers introduced their Mars Dogs.The new robots are equipped with sensors that allow them to avoid obstacles, choose between various paths and buildvirtualmaps of buriedtunnelsfor operators at home base.Traditional Mars explorers are limited mostly to flat surfaces, but many scientifically interesting Martian regions are only reachable by crossing very rough land or going down below ground.Walking robot “dogs” are well-suited for such challenges—even if they fall down, they can get back up again.A Mars Dog would also be roughly 12 times lighter than current rovers and would be capable of traveling much faster, reaching normal walking speeds of 3 mph (5 km/h) during tests.

        On Mars, caves may offer shelter to future human colonies, providing natural protection against deadly UV radiation, extreme cold and intense dust storms that can last for weeks.Caves may also harbor evidence of life from Mars' distant past, or even provide a current home for organisms living deep underground, the researchers said at AGU.

        Legged robots that can walk around rocks, lower themselves into caves and select a path—while also gathering measurements and building a map of what they “see”—could offer scientists new opportunities to detect signs of life beyond Earth.

        The Mars Dog also uses AI to learn which structures to avoid, and to identify objects that may be of scientific interest, while a communication module allows the robot to transfer data to the surface while it's exploring underground.“These behaviors could one day enable revolutionary scientific missions to take place on the Martian surface and subsurface,” the scientists said at AGU.

        Reading Check

        1.What did researchers do at the online meeting of AGU according to paragraph 2?

        A.They discussed the latest robot models.

        B.They made a plan for Mars exploration.

        C.They gave an introduction to Mars Dogs.

        D.They tested the walking speed of Mars Dogs.

        2.Why can Mars Dogs avoid obstacles?

        A.They are equipped with sensors.B.They have special smell senses.

        C.They have four automatic legs.D.They are controlled remotely.

        3.What does the third paragraph mainly talk about?

        A.The advantages of legged robots.

        B.The function of caves on Mars.

        C.The equipment of the robotic dogs.

        D.The organisms living underground.

        Language Study

        熟詞生義

        On Mars, caves may offer shelter to future human colonies, providing natural protection against deadly UV radiation, extreme cold and intense dust storms that can last for weeks.在火星上,洞穴可能為未來的人類提供避難所,為抵御致命的紫外線輻射和可能持續(xù)數(shù)周的極端寒冷和強(qiáng)烈的沙塵暴提供自然保護(hù)。

        last v.持續(xù)

        e.g.The meeting only lasted (for) a few minutes.會(huì)議只開了幾分鐘。

        人人妻人人狠人人爽天天综合网 | 无码免费人妻超级碰碰碰碰| 国产精品国产午夜免费看福利| 一级a免费高清免在线| 成人av蜜桃在线观看| 国产精品三级av及在线观看| 精品国精品无码自拍自在线| 精品国偷自产在线不卡短视频| 黄片一级二级三级四级| 国产丝袜美腿精品91在线看| 亚洲中文字幕久久精品无码喷水| 国内精品一区视频在线播放| 亚洲综合久久久中文字幕| 精品一区二区在线观看免费视频| 久久99国产精一区二区三区| 亚洲区在线| 国产高清一区二区三区视频| 日本高清乱码中文字幕| 99精品国产一区二区三区a片| 日本亚洲欧美在线观看| 亚洲av中文字字幕乱码| 日本国产亚洲一区二区| 少妇太爽了在线观看免费视频| √最新版天堂资源在线| 亚洲一区二区三区ay| 影音先锋久久久久av综合网成人| 久久久久久伊人高潮影院| 免青青草免费观看视频在线| 国产精品女同av在线观看| 亚洲中文字幕一区精品自拍| 亚洲国产成人精品女人久久久| av网站入口在线免费观看| 国内自拍速发福利免费在线观看| 极品av麻豆国产在线观看| 国产精品九九九久久九九| 国产熟女露脸大叫高潮| 亚洲av无码一区东京热| 天天爽天天爽天天爽| 老熟妇高潮av一区二区三区啪啪| 45岁妇女草逼视频播放| 久久夜色精品国产噜噜亚洲av|