查询词典 sand paper

This paper makes a multidisciplinary analysis of regional geology, core data, heavy minerals, seismic data and logs, determines that the Qing 2 reservoir in Daqingzijing area belongs to delta front-prodelta depositional system, identifies the types of major sedimentary microfacies, and analyzes sedimentary microfacies and the rule of sand-body distribution for the main subzones.

对区域地质资料、岩心资料、重矿物、地震以及测井曲线等资料进行综合分析，确定大情字井地区青二段油层主要为三角洲前缘－前三角洲沉积体系，并对主要沉积微相类型进行了识别，分析了主力小层沉积微相与砂体展布规律。

The paper introduced serious sand production actuality of the quaternary gas reservoir located in Sebei Gas Field,which consists of unconsolidated fine siltstone formations with high content of shale.

介绍了涩北气田第四系高泥质疏松粉细砂岩气藏的出砂现状，通过多年的室内基础理论研究和现场防砂先导性试验成果总结，形成了适合涩北气田的高压一次充填防砂工艺。

This paper develops the mathematical models of the wind-sand interaction, taking the saltating cloud as fluidized flow. The force exerting on the airflow by saltating particles is expressed in terms of the drag coefficient of the fluidized particle flow.

本文将跃移风沙流视为一种颗粒拟流体，将跃移颗粒对气流产生的阻力用颗粒流的阻力系数来表达，建立了描写两场相互作用的数学模型。

Periphyton community structure is studied in this paper by means of taking glass-medium as artificial substance to attract periphyton that is fixed in the Maocun epikarst spring water and in sand-shale fissure spring water.

用载玻片作人工基质，放置在桂林毛村岩溶生态试验场碳酸盐岩分布区表层岩溶泉水和砂页岩区裂隙泉水中，开展着生微型生物群落结构研究。

A major service, filter equipment: automatic six tapping machines, paper folding machine; Second, filter equipment: Wirewound filter; three, watches and clocks, equipment: copying machine, approved spent; four, other machinery and equipment : Hardware Trimming Machine, Pressure Machine, Film composite machine, Knurling-scale, sand box; can also customer demand, design, manufacture Gezhongfeibiao machinery.

一、滤清器设备：全自动六头攻牙机、折纸机；二、滤芯设备：线绕滤芯机；三、钟表设备：仿形机、批花机；四、其它机械设备：五金切边机、压线机、胶片复合机、刻度滚花机、砂箱；此外还可以根据客户需求、设计、制造各种非标机械。

A new intelligent multi-properties tester of molding sand is introduced in this paper.

介绍了一种新型的智能化铸造型砂多项力学性能测试系统。

This paper points out that the metal mold casting coated with resin sand and the shell mold casting filled with iron balls are technologies with good future in the production of ductile iron crankshaft s.

介绍了国内外球铁曲轴的生产应用以及铸造工艺现状，指出铁型覆砂铸造和壳型填铁丸铸造工艺是生产球铁曲轴件具有良好前景的方法。

Based on the geological and mining conditions and occurrence characteristics of loose aquifer of Xinglongzhuang Colliery,water bursting cause of 4303 full-mechanized caving mining face under loose aquifer was analyzed,the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper.

根据兴隆庄煤矿地质采矿条件，结合松散含水层赋存特征，分析了四采区4303综放工作面第四系松散含水层出水的原因，探讨了防治三含水的技术途径和留设防砂煤柱的合理尺寸。

Based on the geological and mining conditions and occurrence characteristics of loose aquifer of Xinglongzhuang Colliery,water bursting cause of 4303 full-mechanized caving mining face under loose aquifer was analyzed,the prevention measures of the 3rd aquifer and reasonable dimension of coal pillar for sand proof were discussed in this paper.

通过对梅河四井溃泥工作面覆岩破坏特征和顶板岩层状态的探测分析，结合离散元数值模拟手段，模拟了不同状态顶板条件下水平分层综放开采的顶底板位移场和破坏场，探索了溃泥、溃砂发生的成因和机理，丰富了水体下采煤的理论和技术体系。

This paper comprehensively introduces the principle and the role of compacted sand pile in the reinforcement of the soft foundation based on the construction of the second contract section of Bao-Xi Railway,and describes the existing problems and their solutions.

系统地介绍了挤密砂桩加固软弱地基的原理和作用，并结合包西铁路第二标段的实践，阐述了施工中存在的问题及解决办法。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。