used heat

• 余热

used heat的用法和样例：

例句

1. Heat pipe ejective air conditioner is a new no pump system, which can use solar energy and other low-grade heat sources.
   利用热管和喷射器复合所组成的空调系统是一种可利用太阳能和备类余热的无泵型新型空调系统。
2. The organic working fluids bicirculating screw expander power generation technology of surplus heat recovery is just a new energy recovery technology.
   有机工质双循环螺杆膨胀机余热回收发电技术就是一种新型的能量回收技术。