Low compressive strength of the soft formation, such as mudstone, gypsum, gypsum, soft shale, soft limestone, sandstone.
低抗压强度的软地层，如泥岩。石膏。盐岩。软页岩。软石灰岩。砂岩。
The third fossil formation containing both soft-bodied and hard-bodied animals provides evidence of the result of the Cambrian explosion.
第三个化石地层中既有软体动物，也有硬体动物，为寒武纪大爆发的结果提供了证据。
Through designing different drainage tank the paper studied different drainage conditions and time effects on structural strength formation of soft dredger fill, and carried out grey prediction.
通过设计不同排水条件的实验槽，研究了不同的排水条件及时间效应对吹填软土结构强度形成的影响，并对实测结果进行了灰预测。
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