在中学生物学教学中，常常用到浸制标本。但浸制标本如果密封不严，就会因浸制液的挥发或失效而导致标本的腐烂或干燥变形。我在自制标本的过程中曾用过石蜡、火漆封口，但由于石蜡、火漆与玻璃的粘合力不强，夏天易熔化，冬天易脆裂，每次暑假后必须检查，添加或更换浸制液。 In middle school biology teaching, impregnated specimens are often used. However, if the impregnated specimen is not tightly sealed, the specimen will rot or dry due to volatilization or failure of the infusion solution. I used paraffin wax and wax paint to seal in the process of making my own specimens, but due to the poor adhesion of paraffin wax, wax and glass, summer melting, and winter brittleness, I must check after every summer vacation to add or replace the impregnation. liquid.