excursion

远足, 游览, 参观

旅行团, 游览团

离题

【机】冲程;【物】漂移, 偏移, 振幅, 幅度

【医】移动; 肺的一个完全的呼吸动做

excursion

a short outward and return journey, esp for relaxation, sightseeing, etc; outing

a group of people going on such a journey

of or relating to special reduced rates offered on certain journeys by rail

a digression or deviation; diversion

(formerly) a raid or attack

a movement from an equilibrium position, as in an oscillation.the magnitude of this displacement

the normal movement of a movable bodily organ or part from its resting position, such as the lateral movement of the lower jaw

the locus of a point on a moving part, esp the deflection of a whirling shaft