over-purlin insulation

例句：

1. 1. The over-purlin insulation was installed to improve the soundproofing of the building.
   安装过梁绝缘是为了提高建筑物的隔音效果。
2. 2.The engineer used a special material for the over-purlin insulation, which greatly reduced the noise pollution.
   工程师使用了一种特殊的材料来制作过梁绝缘，这大大减少了噪音污染。
3. 3. The over-purlin insulation plays an important role in protecting the structural integrity of the building.
   过梁绝缘在保护建筑结构完整性方面起着重要作用。