退化说明部分

退化的英语翻译：

degenerate; retrogress; degeneration; degradation; deterioration; obsolescence
retrogression
【医】 catagenesis; catapiasia; cataplasis; Deg.; degeneracy; degenerate
degeneratio; degeneration; degenerescence; degradation; devolution
disvolution; involute; involution; regress; regression; retrogression
revisionary metamorphosis

说明部分的英语翻译：

【计】 specification part