strata ['streitə]

strata的基本解释

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[变形] stratum的复数形式

n.

stratum 的复数

pl.

层, 地层, 阶层

strata的同义词

n. stratum

与strata相关的网络例句 [注：此内容来源于网络，仅供参考]

The research work done is presented as follows:Compound dewatering technique of vacuum tube well is an effective technology for solving the dewatering problems of aquitard and interface relict water according to physical simulation test and field test. The variation laws, such as degree of vacuum, pore water pressure in different strata, have been studied. The results show that there is a certain scope of influence of vacuum in strata, and the vacuum degree in the horizontal direction decreases gradually with the increase of the distance from the main well; the change law of degree of vacuum in the vertical direction increases firstly and then decreases with the depth of soil strata, and changes with different soil nature and depth; changes of pore water pressure in soil strata has also shown a similar law of degree of vacuum.

主要研究工作如下：通过室内物理模拟试验和现场试验均证明了真空管井复合降水技术用于解决弱透水层和界面残留水疏干难题的有效性；并且对不同地层中真空度、孔隙水压力等变化规律进行了研究，发现地层中真空度均有一定的影响范围，且真空度在水平方向上随距主井距离的增加而逐渐降低；在垂直方向上真空度随深度总的规律是先增加后降低，并随土层性质及深度的不同而变化；土层内孔隙水压力也呈现出与真空度类似的变化规律。

The conception, studied objects and basic constituents of non-Smith strata are elaborated from theory level: Non-Smithian strata are the strata that have undergone mixing of different degrees, thus were deformed, metamorphosed and displaced into disorder totally or partially. They are the disorder parts in orogenic belts. Melange is the solo studied object of non- Smithian stratigraphy. The slices in melange is one of the basic constituents of non- Smithian strata, and also one of the basic units in the non-Smithian mapping. The slices used in this paper refer to blocks divided by small-scale tectonic boundaries and have certain constitutes. Superslices used in this paper refer to a set of slice association with similar tectonic deformation bounded by large-scale tectonic mixing.

从理论上阐述了非史密斯地层的概念、研究对象和基本构件：非史密斯地层（non-Smithian strata）是指那些经历过不同程度的混杂建造，并经历了变位，变形、变质，全部无序或部分无序的地层，主要指造山带地层中的无序部分；混杂岩是非史密斯地层的唯一研究对象；混杂岩中的构造岩片是非史密斯地层基本构件之一，亦是非史密斯地层和地质填图基本单位之一，岩片是指以构造拼合边界所分割的具有一定物质构成的地质体；物质建造形成于同一大的构造旋回期（如晋宁期、加里东期、海西期等）、亲源关系密切、大致经历了相似变形、变质历程的一套岩片组合体被称之为超岩片。

Because the increasing of dip angle can lead to special strata behavior which cause difficulties to mining, The strata behavior theory can not be simpely borrowed from that of flat and gently inclined seams. In order to cut down roof accidents and increase production efficiency, the strata movement and stress distribution must be reassessed for seam with deep dip angle.

煤层倾角增大带来了矿压显现的特殊性和开采上的困难，不能再简单地借用水平和缓倾斜煤层的矿压理论，而必须对大倾角煤层围岩运动与应力分布予以重新评价，以降低顶板事故，提高生产效率。

与strata相关的网络解释 [注：此内容来源于网络，仅供参考]

strata：地层

应加拿大尼尔森(KNELSON)重选方案公司、美国特种化工集团公司(简称SCG)、巴西欧洲金属公司的邀请,江西钨业集团有限公司邹汾生副总经理率团一行5人于2008年10月10日~27日先后考察访问了加拿大地层(Strata)黄金公司、加拿大法尔肯(

strata：层

直接的结果便是将两部史诗,尤其是咿利亚特>>作细致而确定的划分,分成属于不同时期的片断(1ays),有时隐约感到艺术与地理成分之间差异的批判家们将这些片断叫做"层"(Strata).

strata：阶层

a),其中银白(SilverWhite)花白色;阶层(Strata)花萼白色,花冠蓝色,播种至开花需85~90天;维多利亚(Victoria)花萼和花冠均为深紫色.

strata：层次

大多数情况下,不同的层次(strata)熔在一起,或者混合在一块,就像大多数的地质地层一样:早期地层常常隆起,或暴露而出,成了表层,成了基原层. 有时候我们能发现很长的一个片断,如果它们被分离的十分清楚,我们可以看到它们之间的区别.

overlying strata：上覆地层

sandstone 砂岩 | overlying strata 上覆地层 | rise heading drivage, rise driving 上山开采法