• 结果表明脂肪比例升高腐竹抗拉强度延伸透水下降

    The results showed that with the increasing of fat, the tensile strength(TS), elongation (E), and water vapor permeability (WVP) decreased.

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  • 测试分析了纺丝速度轧点面积轧辊压力纺粘热轧滤膜透水率影响

    The influences of spinning speed, bonding area and roller pressure on the permeability performance of PET spun-bonded prefabricated vertical drain filters were tested and analyzed.

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  • 穿流式分离器装置容易安装维修方便,维持稳定透水率降低单位能耗

    Said invented through flow type membrane separator equipment is easy to install, convenient for maintenance, stable in water permeability, and can reduce unit energy consumption for producing water.

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  • 水头电站抽水蓄能电站设计,需要查明岩体实际水头作用透水率渗透特性

    In design of pumped storage station or high water head hydro-power station, it is important to evaluate the rock infiltration properties under practical water pressure.

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  • 本文通过试验成果比较得出高压压过程中岩体透水P ~Q曲线变化规律

    Compared with the test production, the paper obtains the variation law of rock permeability rate and P-Q curve during the high-pressure water.

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  • 坝后过上滩水势主要透水率坝后滩地落状况有关滩水量也主要取决于透水的大小。

    The flow behind groynes to the floodplains is mainly related to the permeability rate and deposition status of the floodplain behind groynes. The amount of wate…

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  • 试验透水,其导流效果实体丁坝群的基本相同,并未因部分透水及形态不同而使其控导作用明显减弱。

    Three kinds of permeable pile dikes with different seepage rate are tested, and effect of flow control is basically the same with the spur dike.

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  • 试验透水,其导流效果实体丁坝群的基本相同,并未因部分透水及形态不同而使其控导作用明显减弱。

    Three kinds of permeable pile dikes with different seepage rate are tested, and effect of flow control is basically the same with the spur dike,.

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  • 通过对不同组成共透水率拉伸强度的比较,发现配比为6:1:3的共混膜水通量拉伸强度较好因此体系的最佳配比为6:1:3。

    It was obtained that both the permeability and tensile strength of blending membrane with the ratio of 6:1:3 were better. Therefore the optimizing blending ratio was 6:1:3.

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  • 通过对孔隙沥青混合孔隙配合比及力学指标研究透水沥青路面设计应用提供指导

    Studying the porosity of asphalt mixture with large pores, proportioning and mechanics target offers an instructions for design of permeable asphalt pavement and its application.

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  • 本文提出了一种根据主骨料空隙设计透水面层沥青混合方法

    A new design method based on voidage of coarse aggregates for grading of permeable bituminous surface course is presented in this paper.

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  • 基于减小地表径流、渗透能力铺装溢流量方面因素,设计透水沥青混合料目标孔隙及铺装厚度

    The target porosity and thickness of pavement of the permeable asphalt mixture on the basis of the factors such as reducing the runoff, the filter ability of soil base and pavement overflow.

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  • 分析表明,承压含水层中地下水水头波幅是上、下弱透水贮水越流系数减函数,是淤泥层相对透水系数的函数;

    The amplitude of the head fluctuation decreases with the storativity and leakage of both semi-permeable layers and increases with the leakance of the silt-layer.

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  • 根据透水混凝土结构特征,对配制参数和配合比计算方法进行了研究,提出了以孔隙第一设计参数,抗压强度第二参数的配合比设计方法。

    A mix proportion design method of pervious concrete is provided, of which total void ratio is the first design parameter and compressive strength is the second one.

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  • 四面体透水框架很多单个四面体框架抛投成,具有很大空隙因而可以框架群看成由很多框架杆件孔隙组成的大孔隙多孔介质

    The revetment is made up of many single permeable tetrahedrons, and has much gap, so the group of permeable tetrahedrons can be treat as the porous media with large porosity.

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  • 本文以磺化聚砜为原料,制备了低截留分子量共混超滤,此种膜具有适中分子量3000的PEG截留在90%以上。

    The blend ultrafiltration membrane of the polysulfone and sulfonated polysulfone has been obtained. This membrane has moderate water flux, more than 90% retention for PEG 3000.

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  • 产品过程,考察膜的透水通量、待测溶液纳滤前后电导浓度指标

    Taking the water penetration flux, the conductivity of solution under test before and after nanofiltration, and the concentration of cynarin as indexes in nanofiltration process.

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  • 产品过程,考察膜的透水通量、待测溶液纳滤前后电导浓度指标

    Taking the water penetration flux, the conductivity of solution under test before and after nanofiltration, and the concentration of cynarin as indexes in nanofiltration process.

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