【判断题】
电机运行时，可以手动拉链，加速卷帘门开启或关闭。
A. 对
B. 错
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答案
B
解析
暂无解析
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23117.___圆柱凸轮槽的加工前的数学处理步骤如下：①把弧长展开设为 X 坐标值；②把导程设为 Y 坐标值；③利用软件对转变后的 XY 平面曲线进行插值运算，最后生成 XY 平面内的加工代码；④把 X 值___转换成角度值。如果插值点非常多，则可利用 Excel 文件进行处理。
