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29 sett 2016 anni - 1st 4-passenger hydrogen aircraft flight (Hy4)
Descrizione:
http://hy4.org/zero-emission-air-transport-first-flight-of-four-seat-passenger-aircraft-hy4
Aggiunto al nastro di tempo:
20 set 2018
0
0
342
PhD intro thesis
Data:
29 sett 2016 anni
Adesso
~ 7 years and 6 months ago