"尸体的防腐处理" can be translated into English as "embalming of the corpse" or "corpse preservation".
"Embalming of the corpse" specifically refers to the process of preserving a dead body, typically for funeral purposes, by treating it with chemicals to prevent decomposition.
"Corpse preservation" is a broader term that encompasses any method used to keep a corpse from decaying, including but not limited to embalming.
Both expressions are accurate and can be used depending on the context and the level of specificity required.