discharging their content but not installing it

例句：

1. 1. The firefighters discharged water from the hose to put out the flames.
   消防员用水管向火源喷水以扑灭火焰。
2. 2. The scientist was discharging his findings at the conference.
   科学家在会议上发表了他的研究成果。
3. 3. The police were discharging their guns in an attempt to subdue the rioters.
   警察发射了催泪弹，试图平息骚乱者。