Rekall Incorporated@lemm.eeM to Hardware@lemmy.worldEnglish · 1 个月前World's first carbon fiber metro train hits the tracks in Chinawww.techspot.comexternal-linkmessage-square2fedilinkarrow-up120arrow-down10cross-posted to: [email protected][email protected]
arrow-up120arrow-down1external-linkWorld's first carbon fiber metro train hits the tracks in Chinawww.techspot.comRekall Incorporated@lemm.eeM to Hardware@lemmy.worldEnglish · 1 个月前message-square2fedilinkcross-posted to: [email protected][email protected]
minus-squareJohnDClaylinkfedilinkarrow-up5·1 个月前I wonder why? Sounds pricy. If you have overhead electrical, you usually don’t need very high efficiency.
minus-squareEheran@lemmy.worldlinkfedilinkarrow-up5·1 个月前Weight is pretty much irrelevant on tracks due to the extremely low friction. You can also regeneratively break. It does not make sense.
I wonder why? Sounds pricy. If you have overhead electrical, you usually don’t need very high efficiency.
Weight is pretty much irrelevant on tracks due to the extremely low friction. You can also regeneratively break. It does not make sense.