在垂向上，隔挡层的存在可以导致多个垂向序列单元、层间氧化带和铀矿卷头的发育。
In vertical direction, the existence of isolated barrier bed may result in the formation of multiple vertical sequence units, and the development of interlayer oxidation zone and uranium roll.
她有一头又短又卷的褐发。
她已经七十多岁了，一头卷卷的白发，带着亲切慈祥的微笑。
She is in her seventies, with curly white hair and a sweet, grandmotherly smile.
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