介かい在ざい

noun, noun or participle which takes 'suru', intransitive verb

being interposed; existing between

Used when something physically or abstractly lies between two things. The common pattern is AとBの間に介在する or Aの間に介在している.

• 二ふたつの層そうの間あいだに薄うすい膜まくが介かい在ざいしている。

  A thin membrane lies between the two layers.

• この問もん題だいには複ふく数すうの要よう因いんが介かい在ざいしている。

  Multiple factors are involved in this problem.

noun, noun or participle which takes 'suru', intransitive verb

intervention; involvement; intermediation

Used when a person, organization, system, or hidden factor comes between parties or becomes involved in a process. It does not necessarily imply aggressive interference, unlike 介入.

• 多おおくの業ぎょう者しゃが介かい在ざいすると、費ひ用ようが高たかくなる。

  When many businesses act as intermediaries, the cost goes up.

• 第だい三さん者しゃが介かい在ざいしたことで、交こう渉しょうは円えん滑かつに進すすんだ。

  The involvement of a third party allowed the negotiations to proceed smoothly.