circulating reflux

例句：

1. 1. The patient's blood pressure was elevated during the circulating reflux.
   患者循环回流时血压升高。
2. 2.The engineer found that the circulating reflux caused the water to flow backwards.
   工程师发现循环回流导致水流反向。
3. 3.The circulating reflux could be a sign of an underlying medical condition.
   循环回流可能是某种潜在医疗状况的标志。