2026年11月2日星期一
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مرآة العالم الشاملة
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The reason most electrical plug prongs have holes in them

المصدر Engadget 科技قبل 1 يوم
ملخص المحتوى

If you've ever looked at the end of a plug, you've probably wondered why some have holes, and some don't - and no, it's not actually a big conspiracy theory.

يوفر هذا الموقع فقط فهرس العناوين والملخصات، والمحتوى الكامل وحقوق النشر مملوكة بالكامل للناشر الأصلي، يرجى النقر على رابط النص الأصلي للقراءة.

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English
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tech-218ce980

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The reason most electrical plug prongs have holes in them · مرآة العالم الشاملة