查询词典 strata

In the red beds of the Mesozoic Era Nanxiong Late Cretaceous to Cenozoic Paleocene strata, the unearthed, including gastropods, ostracods insects, wheel types such as algae and dinosaur fossils were more than 60 genera, 110 species, of which the most abundant dinosaur fossils, there is Tyrannosaurus rex, short spines Nanshiungosaurus, Nanxiong Microhadrosaurus, as well as fossilized dinosaur eggs into the nest.

在南雄红层的中生代晚白垩世至新生代古新世的地层里，出土了包括腹足类、介形虫类、轮藻类和恐龙类等古生物化石共60 余属、110种，其中以恐龙化石最为丰富，有霸王龙、短棘南雄龙、南雄小鸭嘴龙以及成窝的恐龙蛋化石。

Finally, the achievement is applied in Shendong mining area to study the failure law of underground-induced strata and the characteristics of water-flowing fractured zone for making scientific policy-making basis to realize mining safety, environment protection and underground water protection.

最后，把这一成果应用于神东矿区，对该区采动覆岩的破坏规律、导水裂隙带的发育特征进行了初步研究，为矿区煤炭资源的安全开采和环境保护、地下水资源保护提供了科学决策依据。

Considering the precondition that coal mining in western area must protect good water resources, the developing height to grasp the movement and failure of overburden strata and the relationship between water-flowing fractured zone and overlying water are researched.

结合西部地区煤炭资源的开采必须要保护好水资源这一前提，研究覆岩中导水裂隙带的发育高度，掌握覆岩的移动破坏规律和导水裂隙带与上覆水体之间的关系，从而合理确定煤层的安全开采上限和采煤方法，对于实现矿井的安全生产、保水采煤及生态环境保护，都具有十分重要的理论意义与实际价值。

Due to the over-exploitation of groundwater, subsidence occurred which threaten the development of economy and people's life. It's very important to inspect the structure of water-bearing layer, the distribution of strata and the processing of subsidence.

地下水的长期过量开采导致了苏锡常地区的地面沉降，引发了严重的地质灾害，威胁人民的生活安全，影响了该地区经济的发展；因此，查明含水层结构及各地层的分布规律，研究地面沉降的发生发展过程和机理甚为重要。

Using the advanced analysis technology, such as inclusion measuring temperature, calcite cement's electronic probe and isotope analysis, and the water-core reaction theory, the paper sets up the diagenefic model of coal measures strata, time-temperature model and pore evolutionary model, and provides the basis for seeking the high efficient reservoirs.

利用包体测温、自生石英的氧同位素测定、方解石胶结物的电子探针和同位素分析等先进分析测试技术，结合水岩反映理论，建立了煤系地层的成岩模式和相应的时间温度模型和孔隙演化模式，为高效储层的寻找提供了依据。

As the field work in Xi Shanping Tunnel showing, constructing tunnel in flat dip coal-bearing strata, if there is thick-bedded hard rock nearby, the stability of the wall rock is ensured by the control in soft rock supporting reinforce.

本文对近水平煤系地层中修筑隧道的围岩稳定性进行了深入分析，在含煤岩的围岩变形及应力重分布规律的研究上有所创新，为近水平围岩的支护设计优化提供了可靠依据。

In the steam soak exploitation phase, with time extension and strata pressure drop, steam channeling phenomena becomes serious.

中文摘要：稠油在蒸汽吞吐开采阶段，随着开采时间的延长，地层压力下降，汽窜现象变得严重。

It is important to reduce the span of the hard roof to avoid its impact load on supports. However, at longwall top coal caving face, the periodical weight of roof is a main factor that crushes the top coal, which is beneficial to the top coal recovery. How to use the roof pressure safely is of crucial importance in top coal caving. Based on field monitoring, theoretical analysis of strata movement, the numerical model of compound structure of hard roof stepped cantilever and the top coal cantilever beam is built, and the parameters of the model are also determined. The elasto-plastic finite element method is used to analyze the effect of hard coal fracture under the abutment pressure of hard roof, and the cracking coefficient is defined according to the stress state of the element.

通过对岩层移动的现场观测，建立了&两硬&条件综放采场台阶悬臂—悬臂梁组合的煤岩组合结构力学模型，并以此煤岩结构为基础，建立&两硬&条件综放采场顶煤压裂的有限元数值模型，分析了坚硬顶板不同来压步距对坚硬顶煤的压裂效应，并确定了合理的支架阻力，从而对坚硬顶板进行有效的控制，消除坚硬项板对采场的冲击隐患，同时保证采场矿压对坚硬顶煤的有效压裂，达到提高顶煤回收率之目的，由此形成了坚硬顶煤、坚硬顶板条件下综放采场围岩控制的基本理论和方法。

Furthermore, the paper illustrates how to obtain topography influence depth on self-weight stress field of horizontal, homogeneous and isotropic strata.

此外，本文举例说明了如何求得地形对水平均质各向同性水平岩层的自重应力场的影响深度。

In this paper,by analyzing ground behavior measure data from the working face N101 in Qinyuan coal mine,strata pressure laws of fully mechanized top-coal caving face in three-soft seam are discussed.

通过对陕西秦源煤矿N101综放面实际观测数据进行分析，得出了&三软&复杂结构煤层综放面矿压显现活动规律，并对支架的适应性进行分析。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。