Even before the Naval Studies Board, the Penn State lab had investigated nonlethal weapons and concluded that such calmative gases could work safely.

 
  • 事实上在海军研究局之前,宾州大的实验室就已经开始研究非致命性武器,并且也确认了这类镇静气体可以在无致命之虞的情况下发挥作用。
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