Cyanobacteria and other microorganisms build stromatolites in shallow water as they grow, gradually trapping and binding sediments into the small rock-like towers and mounds.
当浅水区的蓝细菌和其它微生物生长的时候,一些沉积物沉积在上面,它们结合在一起形成岩石一样的小石塔和石丘,最后逐渐形成层状叠层石。
Many random factors were taken into account when calculating the block reliability, such as angles of joint face, binding force, friction coefficient, the rock density, etc.
在分析块体的可靠度时考虑了结构面的产状、粘结系数、摩擦系数、岩体的容重等多个随机因素。
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