You might want to select a few units and destroy your own Assimilator, Refinery, or Extractor after the geyser is depleted so you know which geysers are still worth mining or not.

• 气矿耗尽后，你或许想用自己的兵力摧毁自己的萃取厂、炼油厂或提炼厂，以便知道哪个气矿还值得一采。