Alpha71@lemmy.world to Technology@lemmy.worldEnglish · 7 个月前Why are there no commercially available helmets with HUD's?message-squaremessage-square48fedilinkarrow-up1140arrow-down17file-text
arrow-up1133arrow-down1message-squareWhy are there no commercially available helmets with HUD's?Alpha71@lemmy.world to Technology@lemmy.worldEnglish · 7 个月前message-square48fedilinkfile-text
minus-squareDoubletwist@lemmy.worldlinkfedilinkEnglisharrow-up18arrow-down2·7 个月前Um. Those have existed for years.
Um. Those have existed for years.