查询词典 aluminium

25Vol%YAG-Al2 O3 nanocomposite powders were prepared by the co-precipitaion method from ytrium nitrate and aluminium nitrate as starting materials.

本文介绍用化学共沉淀和在适当温度下煅烧以直接制备YAG-Al2 O3纳米复合粉体的新方法。

Suitable for cutting metal, such as structural steelrefractory steel,castiron,gold ,silver,copper,aluminium.

用途；适合切割碳素结构钢、铸铁及金、银、铜、铝、等金属材料。

Gray castiron works may be repaired by arc welding with electrodes of 08 or ordinary iron wire covered with special coating which contains ferro-aluminium and other graphilizers. During welding process, it is found that these electrodes produce a weld of gray cast iron structure.

灰鋳铁铸件可以用08焊丝或普通鉄丝复以含有铝铁及其他石墨化剂的特种药皮的焊条电弧焊补，在焊接过程中，这种焊条形成灰铸铁组織的焊縫。

Using PAN as indicator and CuSO4 as indirect titrant the aluminium content is determined.

用氢氧化钠溶液溶解样品的同时将铁与铝分离，加入过量的EDTA与铝络合，以PAN为指示剂，用硫酸铜标准溶液间接滴定法测定铝。

Other changes included better brakes and minor styling tweaks, such as chromed bumpers instead of the aluminium ones used in the earlier car..

其他的变化包括更好的刹车等，而不是早前赛车上使用的铝合金的镀铬保险杠轻微造型微调。。

The experiment mainly studied the choice of bauxite, the process of acid digestion and the sedimentation of acid digestion liquor and the way to Eliminated the iron from liquid aluminium Sulfate. The paper introduced the complexion of different bauxite in acid digestion. The influence of the concentration of acid, the proportion of acid to bauxite, the temperature. the pressure and the time of the rate of acid digestion were studied. The condition of the flocculation was also studied.

文中主要对铝土矿的选择、铝土矿的酸解过程、铝土矿酸解液的沉降、液体硫酸铝的除铁等主要生产工艺进行了详细的实验和讨论，论述了不同产地、品位的铝土矿对于酸溶法的适应情况；详细研究了酸的浓度、酸矿比、酸解温度、压力、时间对于铝土矿酸解率的影响，讨论了絮凝剂在铝土矿酸解体系中的使用效果；确定了经济有效的硫酸铝的除铁方法。

Aluminium alloy has low specific electrical resistance .

铝合金的电阻很低。

This Al -free 980nm pump laser have many merits, such as improved catastrophic optical damage level; no degradation due to oxidation of aluminium during fabrication process and laser operation, which is desirable characteristic for multi-step growth; lower electrical and thermal resistance with GalnP cladding; better carrier confinement with GalnAsP confinement layers; Selective chemical etching between GaAs and GalnP maks precisely control for fabrication of stripe geometry lasers.· Calculated the physical parameters of ternary and quaternary III - V compoundsby interpolation formulas based on curve fits or on a linear regression, such aslattice parameter, band gap, and refractive index.· Using luttinger-kohn Hamiltonian-based propagation-matrix method presentedby S.L.

这种无Al980nm半导体激光器可以提高激光器出现腔面损伤所需的能量，消除在生长过程和应用过程中由于Al的氧化而使激光器的使用寿命缩短的问题，便于激光器的多次生长；以GaInP为盖层可以降低电阻和热阻；可以精确的控制GaAs和GaInP之间的化学刻蚀，便于激光器几何形状的控制。

The wet method of making non-water AlF 3 in our factory can restrain the environment pollution, enhance the production yield and reduce the cost in aluminium electrolysing.

我厂采用国内先进工艺生产的无水氟化铝，能有效地减少环境污染、提高收率，为电解铝企业降低成本。

Meanwhile, the company is the sales agent of China Aluminium (Shanghai、Luoyang) Copper Co.,Ltd mainly sells various kinds of red copper, brass, tin bronze, oxygen-free copper, zinc copper-nickel alloy and its strip, board, stick materials.

公司同时又是中铝铜业有限公司的销售代理商，主要经销各种规格的紫铜、黄铜、锡青铜、无氧铜、锌白铜及其带、板、棒材。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。