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教材中指明在电路原理图编辑器中有6个(活动)工具栏,但笔者的PC机只有5个,还有一个“电源与接地工具拦”打不开、无显示。经过反复操练才
There are 6 (active) toolbars specified in the textbook editor in the textbook, but only 5 of the author’s PC and a “Power and Grounding Toolbar” can not be opened or displayed. After repeated practice before