• This thesis estimates siltation intensity of Guangli channel by the obtained data and the data of numerical simulation, and suggests the dredged sand volume from the channel every year.

    本文利用已得的数据资料以及数值模拟数据资料进行了回强度的预算,据此对航道疏浚后每年的清淤提出了合理建议。

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  • USES material not qualified. Such as sand, stone, aggregate quality unqualified; In addition, mostly because cement volume expansion rate is too large (stability serious adverse).

    所用材料合格集料质量合格除此之外,大多数是因为水泥体积膨胀(安定性严重不良)。

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  • However, Domestic technology lag behind foreign technology in some areas, such as volume control with plastic, sand thickness uniformity control.

    一些关键技术上,控制,夹层厚度均匀性控制,国外同类产品还存在一定的差距

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  • The essence of concrete framework theory is to deduce the cement dosage of unit volume concrete from frame-mortar ratio, unit water dosage and deviated function of cement-sand ratio.

    混凝土架构设计理论实质通过架浆单位用水量以及砂灰比偏离三个参数推求单位水泥用量过程。

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  • By experimental study, how the moisture susceptibility and volume property was influenced by the FAA value of mixed fine aggregate which includes natural sand and stone chips was discussed.

    试验研究的基础上,探讨了在限定级配下,天然混合组成料的棱角性(FAA)沥青混合料体积性质、水敏感性的影响。

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  • The impedance data volume was used to predict the sand thickness and the effective sand thickness, showing a good accordance with the drilling results.

    利用波阻抗数据进行砂岩厚度有效砂岩厚度预测,预测结果钻井结果吻合好。

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  • This paper presents the drained test of saturated tailing sand in dynamic simple shear apparatus by measuring volume change of the sample under cyclic loading.

    本文通过对饱和矿砂振动排水试验量测试样周期荷载体积变化

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  • In order to improve the operating performance of filter tank and propose the high production water volume, the traditional filter media was replaced by homogeneous particle quartz sand.

    目的将快滤池传统层改造为石英砂滤层,为的是改善滤池工作性能,提高产水量。

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  • Effect of curing temperature, curing time, resistance to media, kind and volume of the sand-laden fluid, and particle size of proppant on fibre compound sand control system were discussed.

    探讨固化温度、固化时间介质性、携砂种类用量以及支撑粒径纤维复合防砂影响

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  • This model was examined with the changing of the length column packed Laojunmiao reservoir sand as well as the changing of flow volume injected flooding solution.

    通过改变注入体积流量所建立模型进行实验验证。

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  • Extend rest period and thermostatic period, increase thermostatic temperature also could reduce the dry shrinkage rate of standard curing concrete sand mortar, evidently improve its volume stability.

    延长预养时间恒温时间、提高恒温温度可以降低蒸养纯水泥砂浆的,使体积稳定性得到明显改善

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  • The traditional model is not fit for some actual gas reservoir such as channel sand, which can be described as a box-shaped drainage volume.

    传统模型对于实际气藏河流相沉积为主的储层则适用气藏更适合建立箱式封闭地层模型。

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  • The effect of curing regime, pre-wetting degree of lightweight aggregate, and the volume rate of sand on the frost resistance of high strength lightweight concrete is investigated.

    采用快速冻融研究养护制度预湿程度体积高强轻集料混凝土抗冻性能的影响。结果表明:轻集料混凝土具有良好的抗冻性能。

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  • Through continuous automatical adjustion of the paragraphs fluid volume, ground sand concentration, proppant type and size and so on, the software finally designs fracturing process.

    通过不断自动调整各段防砂液体积、地面加砂浓度支撑剂类型粒径设计出压裂施工程序

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  • For the gas storage, sand production is concerned with many important matters such as the life of the equipments, allocation volume, well completion system.

    对于而言,出问题关系着储气库设备寿命长短、配产的大小、完井方式重要问题。

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  • Mixed with silica fume and silica fume to minus the volume of the same volume of sand and gravel.

    硅粉体积相同数量沙石

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  • Mixed with silica fume and silica fume to minus the volume of the same volume of sand and gravel.

    硅粉体积相同数量沙石

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