heat-insulating groove of piston

例句：

1. 1.The heat-insulating groove on the wall helps to keep the room warm.
   墙上的隔热槽有助于保持房间温暖。
2. 2. The engineer designed the heat-insulating groove to improve the building's energy efficiency.
   工程师设计了隔热槽以提升建筑的能源效率。
3. 3.The new insulation material has a heat-insulating groove that can reduce the need for heating.
   新型绝缘材料具有隔热槽，可以减少供暖需求。