ballista

1. These boats carry ballista for firing grappling hooks to pull enemy ships into contact, enabling boarding actions.
   龙首战舰通常用弩炮发射抓钩强行与敌船靠拢，然后展开接舷恶战。
2. Ballista: Ancient missile launcher designed to hurl long arrows or heavy Balls.
   投石机：古代投掷物体之发射器，用作发射长箭或重型球状物。
3. Constructing Ballista Towers atop settlement walls allows a defending force to shower any attackers with iron bolts, a sensible improvement for almost any siege scenario.
   城墙顶端修建投石塔可当敌军攻击时予以密集杀伤，极大提高城邑防御能力。
4. Unlike the crossbow the Ballista derives its force from twisted animal sinew and not tension from the frontal arms.
   不同于十字弩所利用的弩臂弹力，蝎子弩发射的动力来自于动物筋腱扭曲产生的扭力。
5. Though the ballista are assembled here, their crews are trained outside of the city walls – The only safe place to master the use of such equipment.
   弩炮在工坊内进行装配，弩炮部队训练却必须于城外进行，因为唯有那里方可提供足够开阔场所以供部队进行射击训练。

noun

1. an engine that provided medieval artillery used during sieges

   Synonym:    catapultarbalestarbalistbricolemangonelonagertrebuchettrebucket