水すい蒸じょう気き透とう過か率りつ

noun

moisture vapor transmission rate; MVTR

Technical term used in materials science, packaging, and textile industries to measure how much water vapor passes through a material over time.

• このフィルムの水すい蒸じょう気き透とう過か率りつは非ひ常じょうに低ひくい。

  The moisture vapor transmission rate of this film is very low.