不少劇迷在新年期間湧入直播，將「諧音梗」、時事與劇情相結合加入激烈的留言討論。
And, if a robot arm were to swing out towards you, for safety reasons you would want to be able to immediately stop it and push it back without harming yourself, reverse that motion instantly. For one thing, that requires a back-driveable actuator.
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