n.[U][C]

1. 器械，儀器；設備，裝置
   They have installed wireless apparatus on board.

   他們已在船上安裝了無線電設備。

2. （人體）器官
3. 機構，機關，政黨組織
   The city's security apparatus needs reforming.

   這個城市的治安機構需要改良。

n.

1. the technical equipment or machinery needed for a particular activity or purpose.
2. a complex structure within an organization:
   the apparatus of government.
3. (also critical apparatus, apparatus criticus) a collection of notes accompanying a printed text.