Key points: texture, structure and classification of sedimentary rocks.

重点: 沉积岩的结构 、 构造和分类.

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Factors mainly affecting soil water characteristic curve are soil texture, structure and balk density.

影响水分特征曲线的因素主要是质地 、 结构和容重.

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Bright colors, delicate texture, structure is dense, brittle Kennedy instead.

颜色鲜亮, 质地细腻, 结构致密, 坚而不脆.

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