A fornltila for calculating the heading section of arbitrary three-centered arch and circular arch types was derived in this paper.

It was found that a cobalt-based solid solution with a face-centered cubic crystal structure is presented accompanied by the secondary phase M_7C_3 with a hexagonal crystal structure in the cobalt-based alloy coating.

结果表明，堆焊合金层主要是由面心立方的γ（Co）和六方结构的M7C3构成，并且在钴基固溶体中存在着许多堆垛层错。

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The quantitative relationship between quasi-particle geometry model and face-centered cubic crystal lattice has been proposed.

并推导出该拟质点几何模型与面心立方晶胞之间的定量数值关系。

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The binding energy of face-centered cubic lattice and hexagonal lattice for C_ ( 60) crystal was calculated by using the analytic interaction potential, the stability of different lattice was discussed and the reason why C_ ( 60) is general face-centered cubic lattice was explained.

用该表达式计算了C（60）分别为面心立方和六方晶格时晶体的结合能，讨论了不同晶格的稳定性问题，解释了C（60）晶体一般是面心立方的原因。

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SEM and XRD results showed that Pd were uniform distributed on C/ TiO2 with face-centered cubic lattice, and both the Pd film and Pd wire were composed of Pd nanoparticles with diameter around 20 nm.

SEM和XRD分析表明，两种电极上Pd在C/TiO2上均匀分布、Pd具有面心立方结构，Pd膜与Pd线均由粒径约为20nm的Pd颗粒构成。

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TEM and XRD analysis showed that the Pd nanoparticles were face-centered cubic lattice with high crystallinity, and the average particle size was around 25 nm.

TEM与XRD分析结果表明，纳米Pd是面心立方结构、结晶度良好、Pd的平均粒径约为25nm。

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A face-centered cubic lattice. The space distribution law of D lattice point is revealed.

D晶格证明是面心立方晶格，并揭示了D格点的空间分布规律。

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Simulation of face-centered cubic lattice's First Brillouin zone with 3-dimensional animation

面心立方晶格第一布里渊区的三维动画模拟

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Influence of Coupling Agent on Performance of High Strength Composite Cementitious Material

偶联剂对高强度复合胶凝材料性能的影响

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Test on composite cementitious material used for marine high performance concrete

海工高性能混凝土用复合胶凝材料的试验研究

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In this paper, the study of the reactive mechanism and hydrate products of the fly ash slag& alkali cementitious material ( namely FKJ), Which Na_2SiO_3 is taken as an activator is stressed.

本文研究以Na2SiO3为激发剂的粉煤灰渣-碱胶结料（简称FKJ）的反应机理和水化产物。

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Discussions on Action Mechanism of Crystal Seed in Fly Ash-Alkali Cementitious Material

粉煤灰-碱胶结料中晶种作用机理的探讨

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This paper describes the technical measures taken to well cementing and on-site construction process.

本文细致引见了该井固井采纳的手艺办法及现场施工工艺。

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All oil well cementing process face the problem cementing central channeling air, and it is a potential technical problem in cementing. Cementing central channeling air is one of the most difficultly technical challenges and it should be a considerable period of time to cementing the sector.

固井环空窜流是所有油气井固井过程中都要面临的一个潜在固井技术难题，也是相当一段时间来国内外固井界面临的一个最为棘手的技术难题。

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At the same time, this article also explained the deep wells, high temperature wells, high pressure wells, deviated wells, horizontal wells, long seal the well cementing process key technologies to form the Tarim Oilfield special well cementing process standardization system.

根据塔里木油田的特殊井况，重点介绍了深井、高温井、高压井、大斜度井、水平井、长封固段井固井工艺关键技术，从而形成了塔里木油田特殊井固井工艺标准化体系。

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The reason of producing U shape tube effect in cementing process is analyzed in this paper. A mathematical model of the whole cementing process is set up to calculate the concrete instance and study the relevant factors thoroughly.

本文分析了注水泥过程中产生U型管效应的原因，建立了模拟注水泥全过程的数学模型，进行了实例计算并对有关因素进行了详细分析。

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The accurate reflection and description of the dynamic variations of the parameters in the cementing process is of great importance to the reasonable control of operating measures and the guarantee of cementing quality.

准确反映和描述注水泥过程中井下各种参数的动态变化，对合理控制施工措施，保证注水泥顶替质量是非常重要的。

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Computer simulation of dynamic cementing process

注水泥动态过程的计算机模拟

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Experimental Study on Binding Materials and Cementing Process for Total Gold Tailings

金矿全尾矿胶结材料及工艺的实验室研究

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Both laboratory and field tests have shown that the MTC with exciting agents can meet the needs of cementing operation for medium casing.

室内两类泥浆模拟试验以及现场一类泥浆固井实践均表明，采用激活剂技术的MTC综合性能满足技术套管固井要求。

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The preparation of construction cementing medium from phosphogypsum and blast furnace slag has been studied, highlighting the mixing ratio of the raw materials and the product performance.

介绍了利用化工副产品磷石膏和高炉矿渣制备建筑胶结料的方法。

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