"尸体的防腐处理" can be translated into English as "embalming of the corpse" or "embalming treatment of the body".
"Embalming" specifically refers to the process of preserving a dead body, typically by injecting chemicals to prevent decomposition.
"Corpse" and "body" are both appropriate terms to refer to a deceased person in this context, with "corpse" being slightly more formal or technical, and "body" being more commonly used in everyday language.
Both expressions accurately convey the meaning of preserving a dead body through chemical means.