heat input

例句：

1. 1.The machine requires a lot of heat input to operate properly.
   这台机器需要大量的热量输入才能正常运行。
2. 2.The solar panel uses the sun's energy as a source of heat input.
   太阳能板利用太阳的能量作为热量输入源。
3. 3.The new technology reduces the amount of heat input needed for heating.
   新技术减少了加热所需的热量输入量。