strata
英 [ˈstrɑːtə]
美 [ˈstreɪtə]
stratum 的复数
复数：stratas
柯林斯词典
- (stratum 的复数)
Stratais the plural ofstratum.
双语例句
- Particular strata of rocks can be approximately dated according to the presence or absence of certain fossils.
根据特定地层中现存和缺失的化石可以近似的估计年代。 - By systematic study on some categories of biotic fossils discovered in the carboniferous strata of Laiwu coal field, the assemblage of Fusulinida and conodont of this area is established.
通过对莱芜煤田石炭系多门类化石的研究，建立了本区石炭系蜓及牙形刺组合带，在此基础上对其地层层序及生物地层的划分和石炭二叠系界线的确定进行了讨论。 - Mo abundance of strata and magmatic rocks is43 and21 times of Clark value, respectively.
矿区内地层和岩浆岩钼元素含量分别是克拉克值的43倍和21倍。 - We can follow the history of life through the strata.
我们可以通过这一层层的地层跟踪生命的历史。 - Sedimentary rocks show pollen in very deep," Precambrian "strata.
水成岩指出了前寒武层的花粉传授。 - Hence, strata control theory can be used in gas extraction and control of coal and gas outburst.
因此，可以利用岩层控制理论指导瓦斯抽采和预防煤与瓦斯突出的发生。 - We will make certain assumptions about the properties of the intruding magma and of the intruded strata.
我们对入侵的岩浆和被侵入地层的性质做某些假定。 - Through analyzing variation of soluble anions in near-surface soil, we can track the oil-gas information underlying strata.
通过一定技术手段分析近地表土壤中的可溶态阴离子的含量变化特征，就可以追踪下伏对应地层的含油气信息。 - It describes the trends among the various strata in the countryside.
这个材料描绘了农村中各个阶层的动态。 - Erosion of gently dipping strata commonly results in the formation of asymmetrical ridges known as cuestas.
轻微倾斜地层的侵蚀通常造成非对称的山脊，称为单面山。