查询词典 magnesium

Based on the features of alkaline-earth metals ,this paper aims to analyze the function of such elements as Be,Ca,Sr,Ba in magnesium alloys.

并着重指出镁合金中碱土金属间的交互作用以及碱土金属于非碱土金属间的交互作用，从而探究碱土镁合金的开发之路。

Bisbenzimidazolium salts were used as a tetrahydrofolate coenzyme model, and thus the biomimetic synthesis of twenty-four acyclic diketones as precursors for macrocyclic ketones was successfully accomplished by using the addition-hydrolysis reaction of the bisbenzimidazolium salts with alkyl magnesium halide, wherein six diketones have not been reported in literature.

在本文中，受四氢叶酸辅酶的一碳单元转移反应的启发，作者以双苯并咪唑盐作为四氢叶酸辅酶模型，利用格利雅试剂与双苯并咪唑盐的加成-水解反应，成功合成了二十四种作为麝香酮及类似大环酮重要前体的长链二酮，同时，提供了一种麝香酮及类似大环酮的仿生合成新方法。

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。

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。

At the same time, import agent titanium dioxide, ultra-white ultra-fine calcined kaolin, Brightener, magnesium hydroxide, carbon black, white carbon black gas, and has made three zinc Hunan Antimony Trioxide Antimony Industry Co., Ltd. in east China general agent, the company has a independent right to import and export products are exported to India, Korea, Singapore and other countries.

同时代理进口钛白粉，超白超细煅烧高岭土，增白剂，氢氧化镁，碳黑，气相白碳黑，并取得了湖南三锌锑业有限公司三氧化二锑华东地区总代理，公司拥有独立的进出口权，产品远销印度、韩国、新加坡等国家。

The phenomena of arc discharge in the process of micro arc oxidation on magnesium alloy was investigated.

研究AZ31镁合金微弧氧化过程中不同控制参数对膜性能的影响。

The effect of external AC magnetic field on arc shape and weld quality of magnesium alloy TIG welding were analyzed.

中文摘要：采用组织分析和性能检测的方法，研究了外加纵向交流磁场对镁合金TIG焊电弧形态及焊缝质量的影响。

Industrial Painting (alcohol-based paint), cadmium, magnesium, lead, zinc (galvanized except for a small amount of surface), aluminum (A plate of aluminum and aluminum except for treatment), natural rubber, leather, cork, the general filter paper, asbestos, etc..

工业油漆、镉、镁、铅、锌、铝（铝合金及阿板化处理后的铝除外）、天然橡胶、皮革、软木、一般滤纸、石棉等。

With the electronic probe detection,it is discovered that the mineral elements of the Buton Rock Asphalt contains carbon,oxygen,sulfur,silicon,magnesium,aluminium,autunite,kalium and iron.

布敦岩沥青(Buton Rock Asphalt，BRA)是一种岩沥青，产自印度尼西亚布敦岛海底的沥青矿，该沥青矿是一种经过了上千万年沉积的天然矿物。

I have been using during pregnancy NUTRILITE tablets of calcium and magnesium, I feel pretty good, but also the use of protein powder, vitamin B group, vitamin C, iron plates.

我在怀孕期间一直使用纽崔莱的钙镁片，我觉得还不错，同时还使用了蛋白质粉，维生素B族，维生素C，铁片。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。