To assess each other, climbing partners can observe whether their arms are mostly straight or mostly bent while climbing a relatively easy route.

攀岩伙伴可以通过互相观察判定对方在攀爬相对比较简单的线路时，是否大多数时间直臂还是曲臂。

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In the non-stomata areas the epidermal cells are oblong and parallel to the long axis of leaves, and the anticlinal walls of epidermal cells are mostly straight or some-times undulate.

非气孔分布区内，表皮细胞长方形，细胞壁直或稍微呈波状，细胞长轴与叶片长轴一致。

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In the non-stomata areas the epidermal cells are oblong and parallel to the long axis of leaves, and the anticlinal walls of epidermal cells are mostly straight or some-times undulate.

非气孔分布区内，表皮细胞长方形，细胞壁直或稍微呈波状，细胞长轴与叶片长轴一致。

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