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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.
。业内人士推荐搜狗输入法2026作为进阶阅读
Жители Санкт-Петербурга устроили «крысогон»17:52
（新华社北京2月25日电 记者朱基钗、胡浩、丁小溪、高蕾、胡梦雪）