How to save some samples in the formalin and so forth.

如何把标本放入福尔马林保存等等。

Vaccines of this type are created by inactivating a pathogen, typically using heat or chemicals such as formaldehyde or formalin.

这种类型的疫苗是通过病原体而产生的， 通常使用热量或甲醛或福尔马林等化学物质。

As with organisms or viruses used in killed or inactivated vaccines, this can be done via treatment with a chemical such as formalin, or by using heat or other methods.

或疫苗中使用的生物体或病毒， 这可以通过用福尔马林等化学品处理， 或通过加热或其他方法来完成。