in fine aggregate, the stone powder with grain size less than 0.15 mm and tiny particles with size less than 75 μ m reach 18.9% and 13.6% respectively.

the method of realizing selective permeability for cemented stone with big grain and selective permeation is introduced.

介绍了粗颗粒选择性渗透水泥石一次选择性渗透能力的实现方法。

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study and application of cemented stone with big grain and selective permeation

粗颗粒选择性渗透水泥石研究与应用

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analysis result is, have coal, sand stone, grain and other goods through the large amount kind of bulk cargo of valley port grow have cement, chemical fertilizer, steel and forage etc. mainly.

分析结果为，通过流域港口的大宗散货种类有煤炭、砂石、粮食，其它货种主要有水泥、化肥、钢、饲料等。

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contrary to the viewpoint that hunan was a" landlord-oriented market," this paper argues that the grain market was a "peasant-oriented market" during the late qing and republic.

与过去湖南是地主市场看法不同，本文认为此一时期的米谷市场是农民市场。

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from the theoretical analysis and empirical study above, the paper demonstrated that the grain foreign trade structure in china by far is conformable and reasonable integrated with the comparative advantage law of agriculture resources elements flow.

经过理论分析与实证研究，本文认为基于我国农业资源要素流比较优势原理，我国目前的粮食贸易结构基本是整合的，而且是合理的。

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based on those study results, through the public economic theory analysis, this paper will focus on grain reserves and reaches a conclusion grain reserve is a public goods.

基于此，本文对粮食储备进行研究，主要通过公共经济理论分析，得出粮食储备为公共品。

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the core idea of this paper is that the grain corporation should use the futures market on its own initiative in order to exert its advantages.

本文的核心是粮食企业应该积极地利用期货市场，学会在期货市场和现货市场上两条腿走路，以此发挥粮食企业的优势。

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following that, this paper point out that grain corporation could not decrease price risk if they only do business on grain market.

本文在参考国外粮食企业如何减少价格风险经验的基础上，认为我国的粮食企业应该积极利用期货市场化解价格风险。

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this paper designed a new grain lateral vibration plane screen on the basis of analyzing the current grain-cleaning machine.

针对目前谷物清选机械中存在的一些问题进行了分析，设计了一种新型的横向振动平面清选筛。

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the paper presents a grain threshing and separating installation based on the technology of computer aided testing, it expounds the working principle of the sensors and also introduces the function of the software and hardware of the system.

设计了基于计算机测试技术的谷物脱粒与分离试验数据采集系统，分析了系统的传感、测量原理及系统的软硬件功能特点。

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in this paper, the grain growth in the haz of three kinds of ultra-fine grain steels such as low carbon steel, commercial x65 steel and high purity x65 steel were evaluated.

研究了低碳钢、普通市售X65钢和高洁净度X65钢三种超细晶粒钢焊接HAZ的晶粒长大倾向。

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this paper introduced the grain distribution testing method of pool capping mudstone, including the characteristics of the laser grain meter, the reagent, the testing principle, sample preparations and the testing result etc.

介绍了油气藏盖层泥岩的粒度分布测定方法，包括所使用的激光粒度仪的特点、所用试剂、测试原理、样品制备及测试结果等。

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the paper described the grain damage characteristics of brazed diamond quill and electroplated diamond quill, and discussed their relations to normal grinding force during face grinding of the granites.

研究了钎焊金刚石磨盘和电镀金刚石磨盘磨削花岗岩的磨粒损伤形式及其与法向磨削力之间的相互关系。

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based on the grain supply and demand under the different development strategies in the future, the paper identifies the grain trade scale and makes a prospect for the virtual water trade condensed in grain.

通过对未来我国在不同粮食发展战略下的粮食供需情况，确定我国粮食进口基本规模，对未来我国虚拟水贸易格局进行展望。

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in this paper, fine grain parallelism is emphasized in the design of massively parallel computers to acquire higher performance, but the increasing communication overhead should be solved first.

为实现高性能有必要采用细粒度的并行，但必须解决其中增大的通信开销问题。

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the paper gives the grain design analysis of the solid rocket motor for patriot pac-3 missile. the advantages of a slotted tube grain are analyzed.

对“爱国者PAC3”型低空拦截导弹主发动机的装药药型进行了反设计，分析计算了开槽管形装药药型的优点。

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in this paper, a grain growth kinetic model in the weld heat-affectedzone ( haz) is proposed.

本文提出了一种焊接热影响区（HAZ）晶粒生长动力学模型。

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this paper proved that grain size composition of pluvial fan conglomerate has self similar fractal structure by applying fractal theory.

应用分形理论证实了洪积扇砾岩的粒度组成具有自相似的分形结构。

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in this paper, the grain filling process of different spikelet position of varieties was described with logistic growth equation.

对寒地水稻不同品种、不同粒位子粒灌浆过程进行了Logistic方程的拟合；

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this paper forecasted the grain gross output of inner mongolia by improved back propagation algorithm with high forecast precision.

在改进B-P算法、提高B-P算法预测精度的基础上，对内蒙古粮食总产量进行了预测。

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