1. An object likened to a slender, pointed missile either in shape, use, or effect. 
   外形似镖的事物物体在形状、使用或效果上像一细长带尖的投掷物的物体
2. A slender, pointed missile, often having tail fins, thrown by hand, shot from a blowgun, or expelled by an exploding bomb. 
   飞镖，标枪细长带尖的投掷物，通常尾部有鳍，用手掷、从吹矢枪中发射或由炸弹推动
3. Missile technology; a missile silo. 
   导弹技术；导弹仓库
4. ballistic missile defense system 
   弹道导弹防御系统
5. ballistic missile tracking radar 
   弹道导弹跟踪雷达

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