发布时间:2025-01-16 17:58:12
占地面积=底面积=长×宽=5×3=15平方米
展开面积=表面积=2×(长×宽+宽×高+长×高)=2×(15+20+12)=94平方米
欧姆龙h3y2时间继电器怎么实现通电延时接dc24v电磁阀电路白痴求具体接线方法插座怎么接线
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