查询词典 stratum

Summarize the condition that the silicified wood forms, must possess: The volcano breaks out or other reasons make the stratum subside, the trees are buried deeply, the environment close, bear the high pressure, stand the infiltration of the high-temperature karst taking oxidizing silicons two times as principal ingredients, go through it with the endless long river that must be written every year, just reach the silication right fruit after all.

概括硅化木形成的条件，必须具备：火山暴发或其他原因使地层陷落、树木深埋、环境封闭、承受高压，并经受以二氧化硅为主要成分的高温岩溶的浸润，历经以千万年记的漫漫长河，才终达硅化正果。

The structure of Chinese social stratum has undergone twice enormous changes in the past fifty years. In the present stage its shape is moving from "PYRAMID" to "SLIVE".

建国至今的五十多年间，我国社会阶级阶层发生了两次结构性变化，现阶段的社会阶层结构正由金字塔形向橄榄形转变。

Systematic geological investigation and stratum section study was approved that no early Carboniferous Brochipoda: Eochoristites, Fusella, Spirifer etc.

系统地质调查和地层剖面研究证实：海南岛南好地区早石炭世南好组选层型剖面、创名地化石点等所报道的早石炭世腕足类：Eochoristites，Fusella，Spirifer等并未发现。

When it comes to the predicates of the semantic stratum, the author , according to the different conflation of five semantic components STATIVE, CHANGE, CAUSE, CONTACT and MOTION , divide verbs into eight types: stative, motion, change, cause, break, cut (CONTACT, MOTION, CAUSE and CHANGE), touch and hit.

在这一层中，作者引用了Levin 基于语义成分的对四个动词hit， touch， cut，和break的分类并把它延伸到英语性状小句中的动词分类，在此基础上，增加了四类动词：空间结构的静态动词，空间结构中的不延及他物的变化动词和不产生显著结果的动作动词及致使结构中不可省略性状成分的纯致使动词。

Basing on theregional sequence stratal framework, carry through the elaboratecompartmentalization of sequence stratum in major horizon and basing on seismicand logging data, use seismic sequence stratigraphy and drilling sequence stratigraphyto discuss isochronous stratal distributed pattern in framework.

在建立区域层序地层格架的基础之上，对重点层位进行精细层序地层划分，在地震资料和测井资料的基础上，利用地震层序地层和钻井层序地层，探讨等时地层格架内的地层分布模式。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

Research on the technological parameters and influencing factors of subterrene drilling applied on loose stratum.

确定接触热熔法钻进松散地层的工艺参数及影响因素。

Especially in Russia, research on subterrene drills applied on low melting point stratum got big success already.

美、俄、日等国开展热熔法研究已有三十多年的历史，在热熔钻的试验及使用过程中获得了大量的第一手资料，在热熔理论、热熔钻具结构研究等方面取得了很大的成就，尤其是前苏联在针对低融点地层的热熔钻具的研究方面取得了圆满的结论。

In America, Russia, Japanese and other countries, this method has been taken research for more than thirty years, much first-hand data has obtained during the experiment and usage, great achievements has gotten in the aspect of subterrene theory, drills' structure, etc. Especially in Russia, research on subterrene drills applied on low melting point stratum got big success already.

美、俄、日等国开展热熔法研究已有三十多年的历史，在热熔钻的试验及使用过程中获得了大量的第一手资料，在热熔理论、热熔钻具结构研究等方面取得了很大的成就，尤其是前苏联在针对低融点地层的热熔钻具的研究方面取得了圆满的结论。

I was walking in a meadow, the source of a small brook, when the sun at last, just before setting, after a cold gray day, reached a clear stratum in the horizon, and the softest, brightest morning suWe had a remarkable sunset one day last November.

方当我仍然漫步于一道小溪发源处的草地之上，那天际的的太阳，终于在一个凄苦的寒天之后，暮夕之前，涌出云层，骤放澄明。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失