指两个或两个以上不同的单位联合而成的统一体（一般指经济实体）association

• 科研生产联合体

  association of scientific research and production

• 一部分农民自愿组成了新的经济联合体。

  Some farmers have voluntarily formed a new economic association.

• 这是由10多个研究所联合组成的半紧密型产学研联合体。

  This is a semi-close production studies research association comprised of over 10 research institutes.