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发表于 2017-7-6 14:29
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回到未来 发表于 2017-7-4 13:54 : J. p+ z W6 ^8 l- f) V
如F大所说,确实要看具体定义的。之前我也以为是有问题 ' f4 W, z9 R5 X) @' U+ }
但是第二段,写着 A型和B型 插片都有洞。。。而中国的插头插片上没有洞。。- O. Q/ t4 \7 y8 H1 G; S
The pins on Type A and Type B plugs have a hole near the tip that fits into ‘bumps’ found on the contact wipers of some sockets, so that the pins are gripped more tightly allowing for better contact and also to prevent the plug from slipping out of the socket. Some sockets have spring-action blades that grip the sides of the pins, making the holes obsolete. |
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