(aeronautics) elevator (control surface of an aircraft)

coordination; regulation; adjustment

adjustment

needed, necessary

need, necessity

rudder, tiller, helm

(nautical) the rudder of a boat or ship / (nautical, aeronautics) the helm, tiller, or wheel of a boat or ship, or of an aircraft / (figuratively) a position of leadership or control

Synonym of エレベーター

entrance, (especially) entrance area of a school building

tuning a radio or television