arrival and departure
Used for transportation schedules, especially trains, planes, and buses. Often appears in compounds like 着発時刻 (arrival and departure times).
impact detonation; exploding on impact
Military term for ammunition that detonates upon hitting a target. Often used in compounds like 着発信管 (impact fuze).
The arrival and departure times of trains are displayed on the station bulletin board.
The shell was equipped with an impact fuze.
impact fuze; contact fuze; percussion fuze; direct-action fuze
Compound of 着 (arrival, wearing) and 発 (departure, discharge). The military sense derives from the idea of 'arriving and then discharging/exploding'.