空气动力

aerodynamic force

empty / air / sky / in vain

to empty / vacant / unoccupied / space / leisure / free time

air / atmosphere

gas / air / smell / weather / to make angry / to annoy / to get angry / vital energy / qi

gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi

pneumatic

(of sth) to move / to set in movement / to displace / to touch / to make use of / to stir (emotions) / to alter / abbr. for 動詞|动词[dong4 ci2], verb

motive power / force / (fig.) motivation / impetus

power / force / strength / ability / strenuously

aerodynamics