溶よう存ぞん酸さん素そ

noun

dissolved oxygen

Technical term used in environmental science, water quality, and biology to refer to oxygen dissolved in water.

• 河か川せんの溶よう存ぞん酸さん素そ量りょうを測そく定ていした。

  We measured the dissolved oxygen level in the river.

• 水すい温おんが上あがると溶よう存ぞん酸さん素そが減げん少しょうする。

  Dissolved oxygen decreases as water temperature rises.