They farm fungi, raise aphids as livestock, launch armies to war, use chemical sprays to alarm and confuse enemies, capture slaves, engage in child labour, exchange information ceaselessly.

Pheromones: they're those chemical signals often associated with attraction. But there are many chemical signals we give off-including ones that might signal alarm, aggression or other emotions.

In the chemical engineering production process of the continuous long cycle, once the stalling fault appears, the alarm affirmative of the first accident is the hinge of judging stalling causes.