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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对此，波波倒是很坦然：“我家庭条件不好，本来就是从零开始的，大不了再回到零，没什么大不了。”
三星 S26 防窥屏来了，真有用？