vapour barrier

例句：

1. 1.The new design of the car has a vapour barrier to prevent condensation.
   这款新车的设计有蒸汽屏障，防止冷凝。
2. 2. The vapour barrier is designed to keep out moisture and dust.
   蒸汽屏障设计用来阻止水分和灰尘进入。
3. 3.The vapour barrier is crucial for maintaining indoor air quality.
   蒸汽屏障对于保持室内空气质量至关重要。