spongy membrane

With increasing elevation, the leaf area, leaf thickness, palisade mesophyll thickness, spongy mesophyll thickness, stomatal area, epidermis cell area and pubescence density were increased, while cutin membrane thickness, epidermis cell density, pubescence length, and stomatal density were decreased.

mm-2.随海拔升高叶面积、叶厚度、栅栏组织和海绵组织的厚度、气孔器面积、表皮细胞面积以及表皮毛密度呈增加趋势，而角质膜厚度、表皮细胞密度和表皮毛长度则呈减小趋势；

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The results indicated that the eggshell structures of four birds were much similar with other bird species, which were outer layer, spongy layer, cone layer, mammilla, shell membrane layer and pore channels through the shell from outer to inner.

结果显示，这四种鸟类的卵壳结构与其他鸟类的基本相似，由外而内依次为表层、海绵层、锥体层、乳突、壳膜层及贯穿卵壳的气孔道等。

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Objective To investigate the practicability of a spongy collagen membrane as a dermal substitute.

目的探讨海绵状胶原膜作为真皮替代物的可行性.

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The use of pyroxylin membrane significantly promote the autogenous skull bone dust transfering into primary spongy bone.

在自体颅骨粉末移植修复颅骨缺损中应用生物膜，可以促进移植的骨粉早期迅速形成初级松质骨，修复效果较好。

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