If you're talking about tranquilizer darts, you're probably referring to the kind that are shot out of an air rifle using compressed gas, though they can also be fired from crossbows or blowguns.

如果您谈镇静剂飞镖，您可能指使压缩气体从气步枪中射出，管它们也可以从弩或吹气枪中发射。