pipe lagging

例句：

1. 1. The new pipeline is lined with steel pipes to prevent leaks.
   新管道用钢制管道来防止泄漏。
2. 2.The engineer used a special material for the pipe lagging to make it more durable.
   工程师使用一种特殊材料进行管道绝缘，使其更加耐用。
3. 3. The old house needed some pipe lagging to improve its energy efficiency.
   旧房子需要一些管道绝缘来提高其能源效率。