stratum中文什么意思

n.
(pl. -ta)
1.地层；层。
2.阶层。
+更多解释...短语和例子
the field stratum 地面植被层。 the privileged stratum 特权阶层。 in all social strata 社会各阶层的。

• air stratum:    空气层
• aqueous stratum:    含水层; 蓄水层
• arable stratum:    可耕层

例句与用法

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1. Simple disconformities between adjacent sedimentary strata (4) record time breaks in the succession .
   相邻沿积间的简单的假整合（4）记录着时间序列上的间断。
2. 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。
3. It cuts a clean cylinder of rock , from which can be seen the strata the drill has been cutting through .
   它切割出一块表面光滑的圆柱体石头，从这石块上可以看出钻头在切割的岩层。
4. The widespread progradationally deposited cycles are often capped by oolitic shoals, tidal flat or sabkha evaporite strata .
   广布的加积沉积旋回、经常被鲕滩，潮坪或萨勃哈蒸发岩层所覆盖。
5. Variations in the reflection times from place to place on the surface usually indicate structural features in the strata below .
   反射波在地面从一处到另一处的时间变化，通常是地下岩层构造特征的标志。

英文释义

名词

1. an abstract place usually conceived as having depth; "a good actor communicates on several levels"; "a simile has at least two layers of meaning"; "the mind functions on many strata simultaneously"
   同义词：level, layer
2. people having the same social, economic, or educational status; "the working class"; "an emerging professional class"
   同义词：class, social class, socio-economic class
3. one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)