複ふく層そうガラス

noun

multi-layered glass; insulated glazing

Refers to glass units with two or more panes separated by a spacer, often filled with air or gas for thermal or acoustic insulation. Common in construction and window manufacturing.

• この窓まどには複ふく層そうガラスが使つかわれているので、断だん熱ねつ性せいが高たかい。

  This window uses multi-layered glass, so it has high thermal insulation.

• 複ふく層