rubber bullet

noun

1. 橡皮子弹（防暴用）
   a bullet made of rubber intended to injure but not to kill people, used by the army or police to control violent crowds

1. N-COUNT (防暴用的)橡皮子弹
   A rubber bullet is a bullet made of a metal ball coated with rubber. It is intended to injure people rather than kill them, and is used by police or soldiers to control crowds during a riot.
   1. Rubber bullets were used to break up the demonstration.
      橡皮子弹被用来驱散示威人群。

1. Rubber bullets were used to break up the demonstration.
   橡皮子弹被用来驱散示威人群。
2. Moreover, the application of rubber materials in bulletproof armor is also studied in this paper. The bullet shooting result shows that the rubber has important effect on bulletproof property.
   本文还在防弹装甲结构中尝试橡胶材料的应用，靶试结果表明，橡胶在防弹性能上具有明显作用。

noun

1. a bullet made of hard rubber