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。
Low compressive strength of soft to medium formations. Such as soft shale, soft limestone, soft sandstone, hard and soft abrasive interbedded medium formation.
低抗压强度的软到中等地层，如中软页岩。中软石灰岩。中软砂岩。和软硬研磨性夹层的中等地层。
Based on the monitored deformation of Chambers in soft shale during excavation, this paper analyses the features at different deformation stages in process of loss of stability.
本文基于某软弱页岩峒室群开挖过程中监测到的变形资料，首先分析了岩体失稳过程中不同变形阶段的特征。
In an area of the Atlas Mountains of Morocco the researchers have found another diverse (and sometimes bizarre) assemblage of soft-bodied organisms from a period not long after the Burgess Shale.
在摩洛哥的阿特拉斯山脉，研究人员发现了另一处保存有丰富的动物软体组织的的化石群，它的形成年代紧跟布尔·吉斯化石群之后。
The limestone, sandstone and shale of this area were soft.
这个地区的灰岩、砂岩和页岩都是很柔软的。
A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed.
一种十分常见的水成岩叫油页岩，他是一种很软的岩石，很明显是因为被压积在海底而后形成的。
The oil shale of Wulidui Formation in the Wucheng Basin, Tongbai occurs as brown-black, thin and soft slices with an average oil yield up to 6.
桐柏吴城盆地五里堆组油页岩为棕黑色，质细而软，呈薄片状产出，平均含油率为6。
An unusual feature of the Burgess Shale is that it is one of the earliest fossil beds to contain impressions of the soft parts of animals.
布尔吉斯叶岩不同寻常的特质在于，它是保存有生物软体结构的最古老化石。
A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed. And where there is shale there is likely to be oil.
一块极普通的沉积岩叫页岩，这种页岩质地松软，很明显是通过海底沉积作用形成的。有页岩的地方，极有可能有石油。
A very common sedimentary rock is called shale which is a soft rock and was obviously formed by being deposited on the sea bed.
一种十分常见的水成岩叫油页岩，他是一种很软的岩石，很明显是因为被压积在海底而后形成的。
A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed.
一块极普通的沉积岩叫页岩，这种页岩质地松软，很明显是通过海底沉积作用形成的。
A very common sedimentary rock is called shale, which is a soft rock and was obviously formed by being deposited on the sea bed.
一块极普通的沉积岩叫页岩，这种页岩质地松软，很明显是通过海底沉积作用形成的。
应用推荐