bad insulation

例句：

1. 1.The old house needed a lot of repairs, including bad insulation.
   这所老房子需要很多维修，包括绝缘不良。
2. 2.The new building has better insulation than the old one, which is good for energy efficiency.
   这座新建筑的绝缘比旧建筑好，这对能源效率有好处。
3. 3. The engineer inspected the insulation and found that it was not up to standard.
   工程师检查了绝缘，发现它不符合标准。