查询词典 strata

This paper studies by means of documents research, surveys by questionnaires, comparativeness and statistics, it analyses relative factors which affect cadres、 managers、 professional personnal、 workers stratum diversity of ways of leisure sports among city dwellers and makes a comparison on ways of leisure sports of several social strata. Finally, this paper predicts ways of leisure sports possibly taken by future city dwellers, and summits suggestions on social polices related to leisure sports to make sure that different social stratum has the right to take up leisure sports.

本研究运用文献资料、问卷调查、比较法、数理统计等方法，分析了影响福州市居民休闲体育活动方式的相关因素，并从社会分层的视角，对党政干部、企业经理管理人员、专业技术人员、产业工人四类社会不同阶层的休闲体育活动方式的差异进行了比较与分析；最后，对未来城市居民的休闲体育进行预测，并从保障城市不同社会阶层从事休闲体育权利的角度出发，针对与休闲体育相关的社会政策提出了若干建议。

According to conodont ,coral and foraminifera fossils discovered,the geological age of this sequence of sedimentary strata is Early Carboniferous.

根据所发现的牙形刺、珊瑚、非有孔虫化石，确定其地质时代为早石炭世。

Based on the analyse of the stratigraphic sequence of the Triassic and its covering strata and the Index of the Organic Metamorphic Maturity of conodont, the Triassic of the northern margin of the Gongdise-Nyainqentanglha Stratigraphic Region and the South of the Qiantang Stratigraphic Region was a promising target for the oil exploration.

通过三叠纪时期的沉积体系的时空演化序列，分析出三叠纪在冈底斯北缘、羌南地区形成了有利的生储盖的岩相配置，通过盆地热演化史和牙形石有机变质成熟度的分析，指出冈底斯一念青唐古拉地层区北缘和羌南的三叠系具有良好的油气勘探前景。

The conodont study indicates that the thick carbonate rock strata belongs to the Majiagou Formation of the Middle Ordovician. The Upper part of the formation has the conodont fossil Erraticodon tangshanensis, the lower part is represented by Tangshanodus tangshanensis.

牙形石研究表明这套厚层质纯的碳酸盐岩地层属于中奥陶统的马家沟组，含有上部以Erraticodon tangshanensis为主，下部以Tangshanodus tangshanensis为特征的牙形石。

The strata takes care of all the common property and services and collects the fees which go into a contingency fund for future needs new roofing etc.

照顾各阶层的共同财产、服务及所收取费用的投入应急基金未来需求新屋顶等

He tried to guess how the strata behaved at the time the contortions formed.

他试图推断地层在扭曲形成时是如何变化的。

The geologist needs to know what rocks the drill has reached, so every so often a sample is obtained with a coring bit. It cuts a clean cylinder of rock, from which can be seen the strata the drill has been cutting through.

地质学者需要了解钻探到了什么岩石，所以经常会从钻头穿过的岩层中得到一些岩石样本，切割岩石成为圆柱体。

The paper has studied the strata distributive character and engineering geologic property of bed rock zone of weathering in cryptical coal field, based on large of data form testing and real-field materials, taking importance on the laws of overlying destruction and underground pressure behavior and the mechanism of decreasing protective coal columns while extracting proximity zone of weathering .

以大量实验数据和现场测试资料为依据，研究了隐伏煤田基岩风化带岩体的分布特点及工程地质特性，重点论述了邻近风化带开采的覆岩破坏和矿山压力显现规律以及缩小防护煤柱的机理，为类似矿井的资源回收与安全开采提供了依据。

Shield tunnelling machine;composite strata;nonlinearity;cutterhead driving torque;stall

盾构机；复合地层；非线性；刀盘驱动转矩；堵转

By considering torque characteristics of variable-frequency motors and mesh stiffness as well as backlash nonlinearity in gear transmission,a dynamics model for the cutting system of shield tunneling machine with redundant drives was established. The fluctuation characteristics of torque loads and dynamic cutterhead driving torque in composite strata were analyzed.

复合地层掘进扭矩载荷突变是造成盾构机掘进过程中堵转停机的直接原因，考虑盾构机刀盘驱动变频调速电机特性、转矩传递过程中齿轮啮合刚度及齿侧间隙等非线性因素，建立冗余驱动的盾构机刀盘切削系统机电耦合动力学模型；针对典型复合地层地质条件，对盾构机在上软下硬地层掘进过程中刀盘驱动转矩动态特性进行仿真分析。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。