The thing that jumped onto No. 2 Division's escape vessel was a strange terraformar with strangely developed legs. It then takes the controls and tries to fly off with the escape vessel while everyone is still aboard. Yaeko and the others prepare for the worst as they're trying to figure out why it knows how to fly the vessel.
and the carbon dioxide is exchanged 
with the oxygen in the water.
und es findet ein Gasaustausch mit
dem Sauerstoff im Wasser statt.
este último es intercambiado 
por el oxígeno del agua.
este último es intercambiado 
por el oxígeno del agua.
o gás carbônico troca de lugar 
com o oxigênio na água.