viewimage.php?id=3db5c935ecd139aa7dbcdfb018d221&no=24b0d769e1d32ca73dec84fa11d0283195504478ca9b7677dc322d30c9379b453b93a7ce649bc2ba06bc3580140e06be46b770d970732ebbef9b97c0cd50ad2e15417eb3c6e9ad647833a44100d55cf0656435e44b4dcb0f43b485d59a78ebe40ac5e0d521513b7f


벡터는 이모양인데 왜 전기줄에서는 일자로 이동함?