serous demilune,serouscell

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性腺泡(serous acinus) 粘液性腺泡(mucous acinus) 半月(demilune)
valentino华伦天奴2017秋冬全新demilune手袋图册(1/6)
valentino/华伦天奴demilune女士米色小牛皮手提包nw2b0a46mivy61米色
define serous demilunes and intercalated ducts in mixed acinus