发布时间:2025-01-19 19:42:46
32寸
是指电视屏幕对角线的距离,这里的寸是英寸,1寸=2.54厘米。32寸的电视机一般是宽屏16:9的(传统的显像管电视机是4:3的),根据勾股定理算出来长70.8厘米,宽是39.8厘米。
我想知道两个开关同时控制一个电灯的电路图怎么设计了就比如两个开关a和ba和b都能打开或关闭电灯
2025-01-19 19:42:46 2025-01-19 19:42:46我想看一些女主角被保护的偶像剧例如桃花小妹不要恋爱要结婚最好是韩剧
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