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以下 句库例句中包含 stratum 
1.From the perspective of social mobility, middle-stratum and lower-stratum within new-diddle-stratum tend to enter into an alliance with the lower-stratum of the society while the body of this stratum-managers, technicians, and private entrepreneurs-will possible establish friendly ties with the upper-stratum of the society. 
从其社会流动特征看,内部的中、下层有可能与下层结盟;而三大主干群体-经理、专业技术人员及私营企业主阶层,则有可能会与上层缔结友好关系。

2.In CFM, the linguistic system is a hierarchical organization that involves conceptual stratum, semantic stratum, grammatical stratum, phonological stratum and so forth. 
在该模式中,语言系统是一个关系网络系统,与此同时,语言系统的关系网络又是一个层级组织,主要涉及概念层、语义层、词汇语法层、语音层等。

3.Pursuing its zigzag course, the Chinese revolution has again arrived at a united front of the four classes;but the scope of the united front is now much broader because its upper stratum includes many members of the ruling classes, its middle stratum includes the national bourgeoisie and the petty bourgeoisie, and its lower stratum includes the entire proletariat, so that the various classes and strata of the nation have become members of the alliance resolutely resisting Japanese imperialism. 
在中国革命的曲线运动中,又来了一次四个阶级的统一战线,但是范围更放大了,上层阶级包括了很多统治者,中层阶级包括了民族资产阶级和小资产阶级,下层阶级包括了一切无产者,全国各阶层都成了盟员,坚决地反抗了日本帝国主义。

4.② Migration section is demarcate stratum,using to t0 =2 H/vα directly not have to correction, Whether are level stratum, construction highness and lowness or dip stratum position; 
②偏移剖面标定层位,无论是在水平地层、构造高点、构造低点还是倾斜地层部位,都无须校正,可直接用t0=2H/vα进行标定;

5.The effect of overburden separation dynamic development under key stratum on grouting for bed separation space was analyzed, in order to deal with the problem that the current bed separation growing technology can not prevent the key stratum from breakage, put forward the isolated section-grouting technology for overburden bed separation space, integrated the virtue of growing for bed separation space and partial extraction, the bed separation grouting bodies, key stratum and isolated section pillars were made to constitute the load-carrying body all together, and to reach the purpose of reducing subsidence effectively, increase the coal seam extraction ratio, and accelerate the development of isolated section-growing technology for overburden bed separation space. 
摘要分析了关键层下离层动态发育对离层充填的影响,针对目前离层区充填工艺不能阻止覆岩关键层初次破断的问题,提出了“覆岩离层分区隔离注浆充填”技术,它综合离层充填与条带开采技术的优点,通过离层区充填置换或减小分区隔离煤柱宽度,使“离层区充填体+关键层+分区隔离煤柱”形成共同承载体,从而达到有效减缓地面沉降的目的,提高了煤层采出率,促进了覆岩离层充填减沉技术的发展。

6.The results showed that the oriental oak plantation has high productivity, the stand biomass is 266.560t/hm2, the tree stratum biomass is 257.149t/hm2, the tree stratum biomass is 257.149t/hm2, the tree stratum biomass is 257.149t/hm2, the stand average DBH, height and volume are 19.5cm, 20.4m and 201.87m3/ hm respectively. 
结果表明,栓皮栎人工林具有较高的林分生产量,林分总生物量达266.560t/hm~2,乔木层为257.149t/hm~2; 林分平均树高20.4m,平均胸径19.5cm,蓄积量达201.87m~3/hm~2。

7.Associated with a practical example of pipeline crossing with directional drilling technique in Yizheng-Changling crude oil pipeline, this paper analyzes the characteristics of crossing through rocky stratum with directional drilling, deliberates the stratum status, drilling machine selection, drilling tool assembly, direction control, mud control; drilling process as well as emergency dealing scenarios at the stages of guiding-hole drilling, aperture expanding and back-towing. 
摘要结合仪征-长岭原油管道洪湖长江定向钻穿越工程实例,分析了管道定向钻穿越长距离岩石层的特点,论述了定向钻穿越岩石层的地层状况、钻具组合、控向措施、泥浆控制、钻进工艺以及导向孔钻进、扩孔、回拖阶段的应急预案,针对在钻导向孔过程中因泥浆压力高、信号线多次出现被高压泥浆冲坏、造成控向信号不稳定甚至中断的情况,对信号线的安装提出了改进措施。

8.The result of numerical simulation reveals that though the upper pillar changed the structure of overburden stratum, the stratum failure is of periodic law and surface subsidence of symmetry obviously with the advance of longwall face. 
数值模拟结果表明 ,虽然上部煤柱的存在改变了上覆岩层结构 ,但岩层的垮落仍具有明显的周期性 ,地表的水平移动和垂直下沉仍具有明显的对称性 ;

9.Abstract: Baced on the exploration material of Shuangyashan and Dongrong group stratum,and fossil composition and lithofacies character,the distribution state of Dongrong group stratum is approached. 
文摘:以双鸭山以北集贤煤田绥滨、东荣勘探区及双鸭山以南部分煤田勘探区及双鸭山煤田七星勘探区所见钻孔资料为基础,通过化石组合及岩相特征探讨东荣组地层的分布情况。

10.In production, the technology can provide geologic foundation for objective stratum to take core localization, the drill-stem testing, the well completion work, the well logging interpretation, the well drilling project breakdown processing, and coordinate with other logging methods to carry on the scientific appraisal to the stratum, and has been used widely in exploration and development in Jianghan Oil Region. 
在生产实践中它能够为目的层取心定位、中途测试、完井作业、测井解释、处理钻井工程故障提供地质依据,并与其他录井方法和测井方法相配合,对地层进行科学化评价,在江汉油区油气田勘探开发中广泛运用。

 
 
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