outer cuticle

The results show that, under the experimental conditions, the alkali stability of silicon in outer cuticle and in its neighboring fiber wall is lower, and that of the silicon in bundle sheath and in inner epidermis is very high.

结果表明，在碱法制浆过程中，麦秆外表面皮层及皮下纤维层中的Si对碱的稳定性较差，麦秆内部的维管束及内表皮层中Si的碱稳定性较高；

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The outer surface of the cuticle consists of three major elements, i.e. C, O, Si, and the silicon content is very high in different structures of the outer-surface of the cuticle, up to 50%~ 55%.

皮层外表面主要由C、O、Si等元素组成，Si含量高达50%～55%；

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The outer tangential wall of both surfaces had cuticle.

上下表皮外切向壁上均有角质膜.

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The epidermis cells of stem and leaf have comparatively thick outer wall and cuticle.

茎、叶表皮细胞都有较厚的外壁和角质层。

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This is because the outer cuticle layer of the hair fiber is broken and flaked.

这是因为角质层层外的头发纤维被破坏成片状。

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