natural sand
英 [ˈnætʃrəl sænd]
美 [ˈnætʃrəl sænd]
天然砂
双语例句
- Characteristic Comparison of Alkali-Aggregate Reaction for Recycled Fine Aggregate and Natural Sand
再生细骨料与天然砂碱骨料反应特点比较 - The concrete with sewer sludge fully replacing of natural sand was prepared for the purpose of harmless management, resources utilization and industrialization of city sludge.
采用管沟污泥等量替代天然细集料，制备了掺管沟污泥的水泥混凝土。 - Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately.
分别以铁尾矿砂和铁尾矿石代替天然砂和普通碎石配制了C30和C60两个强度等级的混凝土。 - To study the stability of natural sand embankment slope covered with cohesive soil layer, the mode and the mechanism of sand embankment slope failure were analyzed.
为了研究粘性包边土层与砂填料所共同构成的填砂路基边坡的稳定性，分析了填砂路基的破坏模式与破坏机理，并通过模型试验的结果得到了滑动面位置。 - We uses high-quality natural gypsum and high-quality natural sand as "UooHoo" brand gypsum's main material, add performance additives and precisely measure the ratio.
优好牌粉刷石膏是以优质天然石膏和优质天然河砂为主料，添加高性能外加剂，经过精确计量配比混合而成。 - Feasibility Analysis on The Low Label Concrete Using Mechanism Sand Instead of Natural Sand
低标号混凝土采用机制砂代替天然砂可行性分析 - Natural sand adsorbed viruses increasing with the presence of metal cations, their contents and valence, but this positive role was not clear to modified sand adsorption viruses.
金属阳离子可促进天然砂吸附病毒，并随其浓度和价态的增加而增加，但对修饰砂作用不明显。 - Taking natural sand as model sand and using series scale model, the scouring around the foundation of the Land-island jetty of Jiangsu LNG Loading Station is tested under the interaction of irregular wave and tide current.
以现场天然沙为试验床质，利用系列比尺模型，采用不规则波与潮流共同作用的方式，对江苏LNG接卸站陆连岛栈桥桩基周围的冲刷情况，进行了试验研究。 - Tests are carried out by using crushed brick powder to replace part of natural sand in different substitutive percent in mortar to see how it affects the working ability and compression intensity of the mortar.
研究废砖粉以不同取代率取代建筑砂浆中的天然砂对砂浆的和易性及强度的影响。 - Using recycled concrete powder to replace parts of natural sand in different substitutive percent in mortar to see how it affects the working ability and compress intensity of the mortar. The result shows that recycled concrete powder can be used to make mortar.
研究了废混凝土粉以不同取代率取代建筑砂浆中的天然砂对砂浆的和易性及强度的影响，结果表明，废混凝土粉可以取代建筑砂浆中的部分天然砂配制再生骨料砂浆。 - The application of cement mortar with high-volume fly ash ( fly ash ⅲ take the place of petty grit) is an efficient approach to reduce the pollution of waste matter from coal firing, and solves the shorting of natural sand.
大掺量粉煤灰水泥砂浆的应用（粉煤灰代替细砂），是减轻燃煤废料污染、缓解天然砂缺少危机的有效途径。 - Taking the principle of protecting the environment and changing the offal into useful things, the paper discusses and study the feasibility of fly ash substituting mine powder, machine-made sand and slag-calcium-added substituting natural sand on asphalt mixture.
本课题本着保护环境，变废为宝的原则，探讨研究在沥青混合料中用粉煤灰替代矿粉，机制砂、增钙渣替代天然砂的可行性。 - In the paper, tests are carried out of manufactured sand concrete and natural sand concrete to study the effect of manufactured sand on the impervious performance of concrete.
本文通过试验测试天然砂和人工砂混凝土的抗渗性能，研究了人工砂对混凝土抗渗性能的影响； - Experimental data show that the drag-coefficient curve is quite similar to that of natural sand, and so is the settling-velocity formula in stagnation and turbulent regions, except for transitional region.
实验资料表明，塑料颗粒的阻力系数曲线与天然沙十分相近，因而除过渡区外，滞流区和紊流区的沉速公式与天然沙基本一致。 - By means of velocity measurements for sediment laden flow in the natural sand tests, the characteristics of turbulent flow with high and low concentration has been analyzed comprehensively in this paper.
本文明确挟沙紊流（无流核）为研究对象，通过天然沙挟沙水流流速试验，首先分析紊动状态下高、低含沙水流流速分布特点； - The results show that when the stone sand substitutes for the natural sand, the strength of the concrete increases and the workability of the fresh concrete is improved. The properties of PHC pipe pile can comply with the requirements set forth in GB 13476& 1999.
试验结果表明，利用人工砂替代洁净的天然砂，可以提高混凝土的强度，改善混凝土的和易性，生产出的预应力高强混凝土管桩可以达到国家标准GB13476&1999的要求。 - Whether the natural sand gravel stratum in the river bed would serve as the foundation of the superhigh faced rockfill dam or not was one of the key technical problems of the project.
河床天然砂卵砾石层能否作为超高面板坝坝基是该工程的关键技术问题之一。 - The result shows that crushed brick powder can be used to replace part of natural sand in making mortar.
结果表明，废砖粉可以取代建筑砂浆中的部分天然砂，配制再生砂浆。 - According to the practical project, the rationalities of site selection for natural sand in mountain land are analyzed.
结合山区公路工程天然砂砾料场选址的实际，认真分析料场选址的合理性。 - Construction technology and quality control of bridge and culvert deck backfill using natural sand gravel
用天然砂砾进行桥涵台背回填的施工工艺与质量控制 - To rehabilitate the natural sand beach will construct a harmonious environment.
恢复万米沙滩，营造自然和谐的湖滨环境。 - It is rich in China, so the way by which natural sand is substituted by crushed sand in concrete can well solve the problem of the shortage of natural sand resources, and also produce apparent economic and social benefits.
我国石屑资源丰富，所以用石屑代替天然砂配制混凝土可以解决我国天然砂资源短缺的问题，同时有着显著的经济效益和社会效益。 - Just as it is for the natural sand, artificial sand used in concrete and mortar should also have a good grading as per the specification and its qualified stone powder content should be restricted.
用于混凝土和砂浆的人工砂应当同天然砂一样，除了要有规范规定的良好级配外，尚应对其合格石粉含量加以限制。 - The plain region produces large amounts of natural sand because of the river alluvial, after a long and black clay sedimentation formed with special properties of silt soil, silt soil composed of fine sand and silt particles, compared with fine clay filler, low cohesion.
平原地区由于江河冲积产生的大量天然砂，与黑黏土经过长期沉积作用形成具有特殊性质的粉砂土。粉砂土由细砂和粉土颗粒组成，与细粒黏土填料相比，粘聚力偏低。 - Using the manufactured sand rather than natural sand in the concrete is very important to resources conservation and environment protection. Thus the development, research and application of manufactured sand has been paid much more attention to.
使用机制砂代替天然砂配制混凝土对节约资源保护环境有重要意义，已成为必然趋势，机制砂的开发、研究和应用也日益受到重视。 - The physical property target of stone chips match with the natural sand and the efficiency is quite good, which is one kind of good generation of granulated substance material.
石屑的物理性能指标与天然砂相当且经济性好，是一种较好的代砂材料。 - The crushed stone dust and natural sand have very similar physical properties.
石屑与天然砂有着相似的物理性质，是比较适宜的代砂材料。 - Natural sand is an important part of concrete.
天然砂是混凝土的重要组成部分。 - The natural sand is the non-renewable resources, the coarse sand were already getting fewer and fewer.
天然砂是不可再生资源，经过我国这几十年来的大规模开采和使用，优质的中、粗砂已经越来越少。 - Recycled concrete technology can well solve the antinomy between abandoned aggregate and the shot of natural sand and gravel resources, also, it means great for reducing production costs and protecting of the urban environment.
再生混凝土技术能很好地解决废弃集料无法处理与天然砂石资源的相对短缺这一矛盾，对降低生产成本，保护城市环境具有重要意义。