The word 发射 is formed through a logical and vivid conceptual combination of its two component characters. The first character, 发 (fā), carries the core meaning of "to send out" or "to release". The second character, 射 (shè), means "to shoot" or "to project". When combined, they create a dynamic, two-stage mental image: the initial act of releasing or triggering (发) followed immediately by the resulting forceful projection or trajectory (射), perfectly encapsulating the unified action of launching something, like an arrow, a rocket, or a signal.