n.[U][S1]

1. 相称；平衡；均衡
   We must try to maintain the equilibrium of supply and demand.

   我们必须努力保持供求均衡。

   Certain ear diseases can affect one's equilibrium.

   某些耳疾会影响人的平衡能力。

2. 均势
   I believe this state of equilibrium will be maintained.

   我相信这个均势将被维持。

3. （心情的）平静
   At my age, it is more important to seek equilibrium of mind than to seek fortune.

   在我这个年纪，追求心情的平静比追求财富还重要。

n.

1. a state in which opposing forces or influences are balanced.
   ▸the state of being physically balanced.
2. a calm state of mind.
3. Chemistry  a state in which a process and its reverse are occurring at equal rates so that no overall change is taking place.
4. Economics  a situation in which supply and demand are matched and prices stable.