wall ring liner
... ring liner 环形衬板 discharge ring liner 排放环衬 wall ring liner 管壁内衬 ...
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管壁内衬层 inner protection liner
真皮下部及皮下组织见大量纡曲扩张血管腔，管壁内衬一层血管内皮细胞，其外有一层至数层血管球细胞。
Skin biopsy showed multiple irregular, dilated, endothelium-lined vascular channels surrounded by a single to a few layers of glomus cells in the lower dermis and subcutaneous tissue.
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