Not really... it's just a "form" of the subjunctive... "Maglev train _could be_/_would be_ seen making ..." You can leave the would/could be out from a stylisti

Not really... it's just a "form" of the subjunctive... "Maglev train _could be_/_would be_ seen making ..." You can leave the would/could be out from a stylistic point of view imho, but you normally don't do that out of context (as it is unfortunately done here)....