papillary layer

• 乳头层

papillary layer的用法和样例：

例句

1. An excoriation is a punctate or linear abrasion produced by mechanical means, usually involving only the epidermis but not uncommonly reaching the papillary layer of the dermis.
   抓痕是由机械因素引起的点状或线状擦伤，常累及表皮，很少累及真皮乳头层。