以下为句子列表：
英文: The peak is composed of banded biotite tonalite of fine mediate grain developing in Mengshan rock suit of Fuping period of Archean era about 2.7billion years ago. It's very steep.
中文: 由27亿年左右形成的太古代阜平期蒙山岩套条带状中细粒黑云母英云闪长岩构成，柱状节理发育，差异性风化剥蚀作用强烈，组成云蒙“山”峰，俗称“挂心崛子”，形容云蒙峰之陡峻。
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英文: Adsorption of Silicate Bacteria on Surface of Orthoclase and Biotite and its Selectivity
中文: 硅酸盐细菌在矿物表面上的吸附及其选择性——以正长石和黑云母为例
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