详细解释:n. 扯开, 撕脱, 扯离的部分
【医】 撕脱[法], 抽出术
英语解释：
名词 avulsion:
an abrupt change in the course of a stream that forms the boundary between two parcels of land resulting in the loss of part of the land of one landowner and a consequent increase in the land of anothera forcible tearing or surgical separation of one body part from another详细解释：
a.vul.sion
n.（名词）Medicine The forcible tearing away of a body part by trauma or surgery.【医学】 撕脱：通过创伤或以手术方法用力抽出一部分组织The sudden movement of soil from one property to another as a result of a flood or a shift in the course of a boundary stream.土地所有权转移：因洪水或界河河道的改变而导致一人所有的土地突然转移，被他人所有