Helium because it boosts power. The robot used in Huawei's aircraft is filled with helium, because helium is a gas of air, which can prevent combustion and explosion, and it is les...
Helium because it boosts power. The robot used in Huawei's aircraft is filled with helium, because helium is a gas of air, which can prevent combustion and explosion, and it is less dense, which can improve buoyancy