pit membrane meaning in English
纹孔膜 外部遮盖纹孔之膜，系由两细胞于纹孔处之细胞间质及初生壁
Examples
- Tori extensions present on pit membrane . taxodioxylon cryptomeripsoides schonfeld : growth rings distinct , transition from early wood to late wood more or less abrupt
柳杉型木( taxodioxyloncryptomeripsoidesschonfeld ) ：生长轮明显，早材至晚材略急变。