soil perfusion technique

例句：

1. 1. The surgeon performed a perfusion to remove the tumor.
   外科医生进行了一次灌注手术来切除肿瘤。
2. 2. The plant's roots absorb water and nutrients from the soil through a process called perfusion.
   植物的根通过一种叫做渗透的过程，从土壤中吸收水分和养分。
3. 3.During the perfusion, the patient's blood was replaced with saline solution.
   在灌注过程中，病人的血被盐水溶液替换了。