Kaseki's efforts to build the science vessel Perseus hit a roadblock when he realizes that it's impossible to get all the parts to fit in practice.
But that's not enough for a real ship.
.لكن هذا ليس كافيًا لسفينة حقيقية
Aber das reicht nicht für ein echtes Schiff.
Mas não é suficiente 
para um navio de verdade.