translation.en: And they can use that task-specific odor in cuticular hydrocarbons -- they can use that in their brief antennal contacts to somehow keep track of the rate at which they're meeting ants of certain tasks.
translation.zh: 于是它们就可以利用这种在表层的由于工种不同而不同的气味—— 它们在短暂的触角接触之后可以利用这些气味 对碰见其他工种的蚂蚁的频率做到心中有数。