noise insulation factor

例句：

1. 1.The noise insulation factor of the new building is much higher than that of the old one.
   这座新建筑的噪声隔离系数远高于旧建筑。
2. 2. The noise insulation factor is an important factor to consider when designing a soundproof room.
   在设计隔音房间时，噪声隔离系数是一个需要考虑的重要因素。
3. 3. The noise insulation factor of the new material is significantly better than that of the old one.
   这种新材料的噪声隔离系数明显优于旧材料。