係けい合ごう

noun, noun or participle which takes 'suru'

engagement; meshing; hooking together

Technical term for mechanical parts that mate, mesh, or hook together, such as gears or a clutch. Often used in engineering contexts.

• クラッチが係けい合ごうすると、動どう力りょくが伝つたわる。

  When the clutch engages, power is transmitted.

• 歯は車ぐるまが正ただしく係けい合ごうしていないと、異い音おんが発はっ生せいする。

  If the gears are not meshing correctly, abnormal noise occurs.