发布时间:2025-02-02 12:03:19
简单方法就是从感应灯继电器(或可控硅)常开触点两端再并接一个开关,当开关闭合时感应开关被短接灯常亮,开关断开感应开关即发挥作用。
舌尖上的中国节目中讲了一位北京大哥在自家楼顶种菜的事问他土中放了啥中药和肥料
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