地层

A rock mass of large horizontal extent bounded, especially above, by ''.'physically'.''''.

地层一个水平的大岩石区域，特别是在它的上面邻接的是''。

Has long been engaged in brachiopod fossils and Carboniferous, Permian stratigraphy.

长期从事腕足动物化石和石炭纪、二叠纪地层研究。

Thus, it can be inferred that the Selong Group in the southern Tibet is also Lopingian in age in view of its correctable brachiopod faunas with those of the Kalabagh Member of the upper Wargal Formation and the Chhidru Formation and the conodont zones around the Permian/Triassic boundary in southern Tibet.

我国西藏南部色龙群及相当地层含有与巴基斯坦盐岭地区Kalabagh段和Chhidru组可对比的乐平世腕足动物群以及二叠系—三叠系界线附近连续的牙形类化石带，由此可以推定色龙群的时代应为乐平世。

On the condition of hard layer and during the process of broaching big diameter hole, designing structure and capability of broaching bit is very important.

在硬地层和大直径扩孔工作中，扩孔钻头结构性能设计极为重要。

The bulk modulus and formation factors of those 3D digital cores were simulated by finite element method.

应用有限元方法计算了重建数字岩心与真实数字岩心的体积模量和地层因素。

Subjected to actual measure method and technical level, it is difficult to predict the distribution of sedimentary facies of underground strata by rule and line.

限于目前的测量手段和技术水平，要做好地下地层沉积相的预测是很难的。

Wen Wa said,"Standard calcareous soil, Tertiary sedimentary strata. There are no valuable minerals."

文娃说：「标准的石灰质，第三纪沉积地层，没有任何有价值的矿物。

Also called calcrete, a hardened layer in or on a soil formed on calcareous substrata, formed in arid and semiarid regions as a result of fluctuating climatic conditions by calcite that precipitates out of solution as water evaporates at the surface.

也称为钙质结砾岩，是一种在土壤中或土壤上形成的石灰质基底的硬化层。在干旱和半干旱地区由于气候条件的变化，随着水分的蒸发，土壤溶液中的方解石在表面沉淀下来逐渐形成了这种地层。

Aiming at the different types of basins developed in Caledonian period in the region, the sequence stratigraphy filling models of the different type basins are established.

针对研究区内在加里东期发育的不同类型盆地，建立了不同盆地类型的层序地层充填模型。

It holds also one of the most complete successions of the Cambrian strata known in China.

此地同样也是我国寒武系地层出露最完整的地区之一。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。