0 the science and technology of the electronic devices used in aeronautics and astronautics: --
The sophisticated avionics enable the helicopter to operate at night.
1 electronic equipment used in aircraft: --
2 the science and technology of developing and manufacturing this equipment: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.