铝

Heat transfer between ingot and mold is then intensified by the quickened flow velocity of Al melt. As a result, the initial solidifying point on the ingot surface in mold moves upwards to decrease the height of contact zone between the melt and mold so as to improve the surface quality of ingot.

铝熔体流动速度的加快能增强石墨环与铝熔体之间的换热，使结晶器内铸锭表面初始凝壳点位置上移，减小了铝熔体与结晶器的有效接触高度，提高了铸锭的表面质量。

The last feature reflects a highly ordered structure of pore arrays. Solid state ^2^7Al MAS NMR investigation showed further that even at high level of aluminum (x~A~l=0.303), the Al atoms could still be incorporated tetrahedrally in the MCM-41 structure.

文中还利用^2^7AlMASNMR研究了试样中Al的化学环境，结果表明，即使在高铝含量的情况下，样品中的铝原子仍以四配位结合在MCM-41的硅骨架上，未能检测出骨架外六配位铝的存在。

Little overdose aluminum caused that the displacement reaction occurred between Al and TiO2 with releasing much heat, and Al2O3 and free Ti were formed, then the active Ti combined with C and produced TiC; more overdose aluminum caused the thermit reaction happened between Al and TiO2, and was generated, then Al3 Ti combined with C and produced TiC.

首先在无过量铝的情况下，Al与TiO2发生置换反应，生成了Ai2O3和游离态，而后游离态与C结合生成TiC；而存在过量铝的情况下，首先发生铝热反应生成Al3Ti，进而Al3Ti与C结合生成TiC。最终完全获得Ai2O3-TiC/Al复合材料。

Then, the application of MCM-22 in OATS process was investigated. It was found out that with SAR increasing, thiophen conversion first increased and reached maximum at SAR of 75 (98.3%), and then reduced. A postulation was raised that the alkylation reaction mainly occurred at the external surface of MCM-22 zeoltie. The application of MCM-22 in ABLPG process was also investigated.

考察了MCM-22在模拟FCC汽油烷基化脱硫方面的应用，研究表明，随着硅铝比的增加，其噻吩烷基化活性在硅铝比为75时达到最大(98.3%)，硅铝比继续增加，活性则不断降低，提出了噻吩烷基化过程主要发生在分子筛外表面的观点。

In the present study, the cell wall pectin content, CEC of root apices and Al-induced secretion of organic acid anions from roots of 10 triticale cultivars differing in Al resistance were examined.

本文在筛选不同小黑麦品种铝敏感性的基础上，研究了根尖细胞细胞壁中的果胶、阳离子交换量及铝诱导的有机酸分泌在抗铝性中的作用。

In the aluminum solution ,the trivalence aluminum ion combi...

另一方面，在这种铝盐溶液中，三价铝离子是以铝水配合物的形态存在，配位水发生水解生成羟基配离子，其通过羟基桥联结，放出水分子，并逐级由单体配合成双核、三核以致形成多核羟基配合物。

In the aluminum solution ,the trivalence aluminum ion combines with water to form the coordination compound and then the coordination waters hydrolyze into hydroxide ions. The hydroxide ions can join up each other by the hydroxide ion bridges so that the double cores, three cores and multiple cores coordination compounds are formed.

另一方面，在这种铝盐溶液中，三价铝离子是以铝水配合物的形态存在，配位水发生水解生成羟基配离子，其通过羟基桥联结，放出水分子，并逐级由单体配合成双核、三核以致形成多核羟基配合物。

Because of the extremely short discharge times, currents of several tens of thousands of amperes are obtained, causing the coil to produce and enormously powerful increasing magnetic field, which, on passing through the disk, induces a current on it. Due to the turns ratio (16 turns coil - 1turn disk), the current through the disk is several times greater than that through the coil.

由于是极短的时间，这样就会获得几万A的电流，使线圈产生极大的磁场穿过铝盘，产生涡流，按照匝比计算（线圈16匝，铝盘1匝），铝盘上的电流是几倍于线圈。

Sapa Heat Transfer Shanghai Ltd is a member of Sapa Group in Sweden. We take the leading position in producing and selling aluminum clad and unclad strip and sheet for heat exchanger in automovite industry.

萨帕铝热传输有限公司是瑞典萨帕集团的独资企业，公司生产和销售复全和非复合的铝带材、管材、板材，为汽车行业提供铝热传输材料。

Aluminum and its products: unhammered aluminum and unhammered alloy aluminum.

铝及其制品：未锻轧铝，未锻轧的非合金铝。

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。