查询词典 alumina

Watering concrete curing time, the introduction of Portland cement, ordinary portland cement or slag cement concrete mixing shall not be less than 7d; retardation of mixed type with admixtures, the impermeability requirements, or ash cement, fly ash cement concrete mixing shall be not less than 14d; of mixing using alumina cement concrete not less than 3d.

混凝土的浇水养护时间，对采用硅酸盐水泥、普通硅酸盐水泥或矿渣硅酸盐水泥拌制的混凝土不得少于7d；对掺用缓凝型外加剂、有抗渗性要求、或用火山灰水泥、粉煤灰水泥拌制的混凝土不得少于14d；对采用矾土水泥拌制的混凝土不少于3d。

Using grog,haydite as aggregate,high alumina cement as binder,and using compound early strength agent,the high strength haydite castable material produced successfully.

以焦宝石、陶粒为骨料，高铝水泥作结合剂及采用复合早强剂，研制成功高强陶粒浇注料。

ABSTRACT Chemical corrosion mechanism of concrete in Qinghai salt lake is briefly reviewed, and bittern resisting behavior of high alumina cement concrete, magnesium oxychloride cement concrete, alkali-activated slag concrete, ferrialuminate cement concrete and polymer impregnated concrete are also reported in the paper.

摘 要 简述了普通水泥混凝土在盐湖环境中的受腐蚀机理﹔报道了高铝水泥、氯氧镁水泥、铁铝酸盐水泥、碱矿渣和聚合物浸渍混凝土的抗盐卤腐蚀行为﹔对硅灰高密实混凝土的抗盐卤腐蚀机理进行了详细讨论，认为改善孔结构是获取混凝土高抗腐蚀性的有效途径。

Polymer-concrete ; emulsive resin ; alumina cement ; epoxy resin

聚合物混凝土；乳化树脂；钒土水泥；环氧树脂

The following are the main export goods we are dealing: antimony oxide.copper,scrap steel.pig iron,products made of tungsten,metal zinc,ferro alloy rare earth,coke,alumina,tin ingots,cement,fluorspar lump,magnesium oxide light and dense,talc lumps,barite,aluminium(processing with incoming materials and re-exporting),gypsum,iron nails,iron wire,calcium carbide,sodium sulphate anhydrous,ferrousmetals,nonferrousmetals,nonmetals,machines,apparatus and instrument,industrial and agricultural tools etc.we are also agent for importing and exporting the above products.

经营范围：我公司经营的主要出口商品有：锑、氧化锑、铜材、废钢、生铁、钨制品、锌、铁合金、稀土、焦碳、矾土、锡锭、水泥、砩石块、轻烧镁、滑石块、重晶石块、铝材、石膏块、铁钉、铁丝、电石、元明粉、黑色金属、有色金属、非金属矿产品、机械设备、仪器仪表、工农具等，并代理上述商品的进出口业务。

High quality ceramic mounted stone with handle, diamond plated products, emery abrasive cream, alumina fiber sharpening stone, spring rubber polishing mounted stone, precision spring rubber polishing mounted stone, precision wool polishing mounted stone, high qualiy precision polishing cream.

中国·浙江省台州长市一砂磨具厂 China Zhejiang Taizhou Yisha Grind Factory 8D50 高档陶瓷带柄砂轮磨头、金刚石电镀制品、金刚石研磨膏、氧化铝纤维油石、弹性海绵抛光磨头、弹性精密橡胶抛光磨头、高精羊毛抛光磨头、高精抛光膏。

Taking the andalusitc imported from South Africa and alumina fiber Produced by Luoyang Institute of Refractory Research as raw materials, and adding polyvinyl and aluminum sulphate as binder respectively, through dispersion, degassing,compression molding process and sintering at several elevated temperatures, samples of the composites with different contents of fibor were made.

采用进口南非红柱石和洛阳耐火材料研究院生产的氧化铝纤维为原料，分别用聚乙烯醇和硫酸铝作为结合剂，经过分散、真空脱气、压力成型及在不同的温度下高温烧结制得氧化铝纤维-红柱石复合材料。

Environment barrier coatings ; citric acid sol–gel method ; barium oxide–alumina–silicon oxide coating ; water vapor corrosion

环境隔离涂层；柠檬酸溶胶–凝胶法；氧化钡–氧化铝–氧化硅涂层；水氧腐蚀性能

The energy balance system of tube digestion in Bayer process is simulated for alumina production and studied the way to reduce energy consumption.

对拜耳法生产氧化铝管道化溶出的能量进行了数值模拟，研究了生产过程中节能降耗的途径。

In the process of alumina production by Bayer process, the loss of soda is mainly caused by the formation of sodium hydrate alumino-silicate.

拜耳法生产氧化铝的过程中，碱耗的主要原因是因为有钠硅渣的生成，碱耗可以用赤泥钠硅比表征。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48