只见它伸出带关节的机械臂，四下里旋转，然后就用带橡皮垫的长手指轻轻地拾起了订书机。
Its articulated arm reaches out, swivels here and there, and then gently picks up the stapler with long, rubber-clad fingers.
1976人们对于异星生命的存在感到很悲观。 当年海盗一号飞行器登录火星，用它伸出的机械臂抓起了一掊红色的火星尘土并进行了化学测试。
Things were not looking so good for alien life in 1976, after the Viking I spacecraft landed on Mars, stretched out its robotic arm, and gathered up a fist-size pile of red dirt for chemical testing.
然后从树里会伸出一个机械臂，把自行车拉入一个圆柱形存放井里，并以很快的速度把自行车存放在空闲存车位里。
A mechanical arm then emerges, pulls the bike into a cylindrical well and stores it at high speed in a free location.
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