heating under reflux

例句：

1. 1. The patient'sstomach was experiencing a backflow of acid.
   病人的胃正在经历胃酸回流。
2. 2. Thedoctor advised him to avoid foods that causereflux.
   医生建议他避免那些引起反流的食物。
3. 3. During the surgery, thepatient experienced a reflux of blood.
   手术期间，病人经历了一次血液回流。