會“鷹爪功”的機器人

河南 劉同功

經過多年的研究，斯坦福大學的一個工程師團隊成功制造了一個帶有小型爪子的機器人，該機器人不僅可以模仿鳥類飛行，還能像鳥一樣棲息在樹枝上。

題材科技體裁說明文文章詞數319難度★★★★建議用時7分鐘

1The SNAG stands for stereotyped nature?inspired aerial grasper and it's a 3D?printed bird robot with claws. It can fly, stay on various surfaces, catch and carry objects, just like the mighty falcon(隼)that was used as the source of inspiration in its development.

2Each leg of the SNAG has two motors, one for helping it move back and forth,and the other one for grasping.Twenty printing attempts were necessary for the robot to finally reach its current structure, but it was worth it. Now,according to researchers, the flying machine has an impressively strong and high?speed clutch, being able to land and wrap its claws around a branch in about 20 milliseconds.Then the SNAG's ankles lock, and there's an accelerometer（加速度計）on its right foot that reports that it's landed while triggering a balancing process to stabilize it.

3Scientists have already conducted several tests with the robot in rural areas and on different surfaces.In all the situations,the SNAG was able to catch objects thrown by hand,such as bean bags and a tennis ball,and more.

4As for the applications of the bird?like robot, the SNAG can get attached to drones and be used for search and rescue missions, wildfire monitoring, to offer just a few ex?amples. Another great application is environmental research, with the SNAG also featuring a temperature and humidity sensor. By using a robot that can act like a bird, you can un?lock new ways of studying the environment, as explained by William Roderick, a mechani?cal engineer and one of the researchers involved in the project. Now scientists are moving on to improving the robot's situational awareness and flight control.

5This isn't the first time nature inspires groundbreaking technologies. Recently, a piece about the F?SAM micro drone was also written,which was inspired by the flight of sa?mara (翼果) seeds, also known as“twisters”which have a special way of spinning down to the ground.

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Then the SNAG's ankles lock, and there's an accelerometer on its right foot that re?ports that it's landed while triggering a balancing process to stabilize it.然后SNAG 的腳踝就會被鎖定，它右腳上的加速度計會報告機器人已經著陸，并觸發(fā)平衡程序來穩(wěn)定它。

【點石成金】本句中，第一個that 引導的是一個定語從句，先行詞為an accelerom?eter；第二個that引導的是賓語從句，作動詞reports的賓語；while引導時間狀語從句。