在采集昆虫标本时需要制作毒瓶在实践中我曾用多种方法制作毒瓶通过对比我感到用泡沫塑料海绵制作的毒瓶既方便又实用特别对于实验条件较差的普通中学更为适用具体方法是先找一个适当大小瓶口较大的带有瓶盖的瓶子然后再找一块厚3cm左右的泡沫塑料剪成 When collecting insect specimens, you need to make poison bottles. In practice, I have used a variety of methods to make poison bottles. By contrast, I feel that the use of foam sponges is both convenient and practical, especially for poor experimental conditions. The ordinary secondary school is more applicable. The specific method is to find a bottle with a cap of the appropriate size, with a large bottle-mouth, and then find a piece of foam plastic with a thickness of about 3cm.