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在常规机加实训·铣工实训中,为了防止学生在操作时操作手柄方向错误而造成封闭键槽位置错误而做的改进,主要针对常规机加实训·铣工实训初学者而增加的方向指示标识。
In the conventional machine training and milling practice, in order to prevent students operating the handle in the wrong direction resulting in the closure of the keyway position error improvement done, mainly for the conventional machining and milling training for beginners and increased direction Indicator.