injection heater

例句：

1. 1. The hospital uses an injection heater to warm the patient's bed.
   医院使用注射加热器来给病人的床加温。
2. 2.The engineer designed a new injection heater that could heat up water quickly.
   工程师设计了一种新型的注射加热器，可以快速加热水。
3. 3.The doctor used the injection heater to treat the patient's fever.
   医生使用注射加热器来治疗病人的发烧。