1.
These folded rocks are composed of medium to thick bedded limestone of Ordovician and of thin bedded shale and siltstone of Silurian.
这些褶皱岩层是由奥陶系的中层至厚层石灰岩以及志留系的薄层页岩和粉砂岩组成。
2.
among the gray colored, thin bedded rocks, there is a red colored, thick bedded rock.
在那些灰色的薄层岩石之中，有一厚层的红色岩石，
3.
Gravely soil with clay-limestone subsoil.
以黏土与石灰岩为基土上覆厚实土壤层。
4.
Study on the Reasonable Overburden Depth for Subaqueous Rock Tunnel
岩石地层水底隧道合理覆盖层厚度研究
5.
The intercalations are divided into five types, such as muddy intercalation, silty intercalation, calcareous intercalation, marly intercalation, and gravel intercalation.
夹层类型主要有泥岩夹层、粉砂质泥岩夹层、灰质夹层、泥灰质夹层和砾石质夹层5种。
6.
Rock, usually limestone, composed of oolites.
岩石岩石，通常指石灰岩，由鲕粒岩组成
7.
Research on the Minimum Rock Cover Thickness of Underwater Tunnel in Alternating Layers of Hard and Soft Rocks;
软硬岩交互地层水下隧道最小岩石覆盖层厚度研究
8.
Model Test on Failure Mechanism of the Surrounding Rock of Oblique Laneway inSeepage Thick Gravel Stratum
渗水厚砾石层斜井巷道围岩破坏机理模型试验
9.
Model test on failure mechanism of the surrounding rock of oblique laneway in thick gravel stratum under seepage water
渗水厚砾石层斜井围岩破坏机理模型试验
10.
The determination of underwater rock covering thickness using engineering analogy experience method
工程类比经验法确定水下隧道岩石覆盖层厚度
11.
Numerical Simulation of the Carbonic Daqing Limestone Aquifer for Xingtai Coal Mine in Hebei
河北邢台煤矿石炭系大青灰岩含水层数值仿真
12.
magnesian limestone
白云石, 含镁石灰岩
13.
sedimentary rocks,eg sandstone,limestone,slate
沉积岩（如砂岩、石灰岩、板岩）.
14.
Sedimentary significance of the autochthonous glauconite in stromatolitic limestones of the Mesoproterozoic Tieling Formation in Jixian,Tianjin,North China
天津蓟县中元古界铁岭组叠层石灰岩中原地海绿石的沉积学意义
15.
Rock, usually limestone, composed of pisoliths.
豆石，豆岩由豆石构成的岩石，常为石灰岩
16.
The car was thickly coated with dust.
汽车上覆盖着一层厚灰。
17.
Each plate consists of a section of the earth's crust and a portion of the mantle, the thick layer of hot rock below the crust.
每个板块由一段地壳和一部分地壳下部厚层炽热岩石地幔组成。
18.
Stratification of rocks into beds.
层理岩石层理形成地层