窒ちっ素そ循じゅん環かん

noun

nitrogen cycle

Scientific term for the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere, terrestrial, and marine ecosystems.

• 窒ちっ素そ循じゅん環かんは生せい態たい系けいの重じゅう要ようなプロセスです。

  The nitrogen cycle is an important process in ecosystems.

• 農のう業ぎょうでは窒ちっ素そ循じゅん環かんを理り解かいすることが不ふ可か欠けつだ。

  Understanding the nitrogen cycle is essential in agriculture.