铝的

Although only a third the weight of steel, aluminium components usually have to be made a bit beefier to replace steel ones, which limits the overall weight savings to about half.

虽然铝材料的重量是钢铁的三分之一，铝零件通常要比其所代替的钢铁零件更加粗壮些，而这又铝零件的重量优势减少了近一半。

Business card printing and membership card during spray Al paper surface temperature unsitability, which remain heat will spray Al paper intenerated of resin coating on the surface, and a deformated, resulting in the loss of sense of reality in metallic luster.

制卡和会员卡制作历程洋喷铝纸暗不天温度的不妥，它的逗留热量会不兵喷铝纸的暗不天树脂涂层强硬，并爆发形变，变成金属光华质感的得回。

Pseudo-boehmite was prepared with nitric acid and sodium aluminate under the same precipitation conditions but different ageing and washing conditions. The influences of ageing temperature, ageing time and ageing media were studied. It was shown that pronging the ageing time and increasing temperature lead to improve crystallinity of PB., the pore diameter of PB can be increased after NH4HCO3 is added in the ageing medium.

在相同成胶条件下利用铝酸钠溶液和硝酸制备拟薄水铝石，而在不同条件下进行老化，研究了老化温度、老化时间及老化介质的影响，结果表明延长老化时间、提高老化温度和老化pH值有助于结晶度的提高，使用NH4HCO3等具有扩孔作用的溶液作为老化介质会降低产品的堆密度和增加孔径、孔容、比表面积。

Root border cells are recently defined alive population sloughed from root tips and loosely adhered in the water soluble mucilage, and the root tip is just the target of Al toxicity, thus it was guessed that border cells might function crucially in the response to Al toxicity.

根边缘细胞是从根尖脱落下来并聚集在根尖周围的一群特殊的细胞，在根际周围起着至关重要的作用，国内外研究表明铝毒对植物影响最快的部位是根尖，而根边缘细胞在根尖产生并聚集根尖周围，因此推测根边缘细胞在根对铝毒响应中起重要作用。

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。

During the production of 200 kA pre-baked aluminum smelting pot,through the repairment of the burning and scraping damages which often occur on the contacting surfaces between anode bus bar and aluminum rod,the matter of loose contact caused by increase of power resistance and decrease of power voltage is efficiently solved,resulting in evident achievements of energy saving and economic benefits.

在200 kA预焙电解槽生产过程中，通过对阳极母线与铝导杆接触面经常出现的烧损、拉伤的修复，有效地解决了阳极母线与铝导杆接触不良导致的电阻增大、电压降升高的问题，节约了能源，经济效益显著。

It features ultra-low noise import pulp Senate carbon fiber, rigid speaker cone greatly strengthened, the effective bandwidth within a more flat frequency response, the unit used aluminum frame and aluminum wire voice coil. Shaker skeleton of the United States military material, light weight, high efficiency, so that the audio sound pressure increased significantly.

超低音单元采用进口纸浆参碳纤维，纸盆刚性大大加强，在有效的频宽内有更平坦的频率回应，单元采用铝盆架和铝扁线音圈，音圈骨架为美国军事物料制造，品质轻，效率高，使音频的声压大幅度提高，更具爆发力，灵敏度极高，低音磁路采用高效率的冷却系统，保证了。

The optical properties of photoluminescence materials of strontium and europium aluminates system are reviewed in this paper, the methods of preparing these material are described systematically, the luminescent mechanism , in the meanwhile, is introduced, and the current situation of investigation of this mate.

20世纪发现和发展起来的铝酸锶铕体系长余辉发光材料是一类重要的新型能源和节能材料。综合评述了铝酸锶铕系发光材料的光学性能，对其制备方法进行了系统描述，同时对其发光机理进行了介绍，并总结了这种发光材料的研究现状

The silicate is more stable than the aluminate. and have better adaptable, but its luminescence properties do not achieve aluminates\ There a lot of work must be done for improving the luminescence properties of silicate.

而硅酸盐体系化学性质较铝酸盐体系稳定，具有更好的适应性，但硅酸盐体系的发光性能尚未达到铝酸盐体系水平，进一步提高硅酸盐体系的发光性能，还需做更深入的工作。

Keeping the oxygen content of liquid steel as low as possible, decreasing the amount of calciumand properly inereasing the residual aluminium in steel, the calcium aluminates formed by deoxida-tion products can be pr...

冶炼时尽量降低钢中的氧量，减少钙量，适当地提高残铝量，使其脱氧产物所生成的钙铝酸盐向着CaO·6Al_2O_3的方向变动，有利于防止点状夹杂的生成。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。