英文英文字典
英文英文字典
古腾堡计划中的在线英语-英语词典
结果
Bell crank的结果
Bell crank
A lever whose two arms form a right angle, or nearly a
right angle, having its fulcrum at the apex of the angle. It is used in
bell pulls and in changing the direction of bell wires at angles of
rooms, etc., and also in machinery.