Ballista

[bә'listә]

解释:

(n.) An ancient military engine, in the form of a crossbow, used for hurling large missiles.

辛迪校对

解释:

n. a Roman military engine in the form of a crossbow which like the catapulta and the onager propelled large and heavy missiles chiefly through the reaction of a tightly twisted rope or else by a violent movement of levers.—adj. Ballis′tic projectile.—ns. Ballis′tic-pen′dulum an instrument for ascertaining the velocity of military projectiles; Ballis′tite an improved kind of gunpowder.

整理:莱斯利