aluminium 高考四级考研GRE六级

It`s made from periclasite,magnesite aluminium spinel,chrome ore as raw material.

以方镁石、镁尖晶石、铬矿为主晶相的性耐火制品。

Aluminium looks heavy but actually it is very light.

看起来很重,实际上却很轻。

We employ aluminium for our cooking pots.

我们用做饭锅。

Don't leave the aluminium spoon in the saltcellar.It will be eaten into by salt.

别留盐, 为盐腐蚀。

The protective coating on aluminium foils packaging for medicine was formulated with thermosetting acrylic resin,pyroxylin.

采用热固性丙烯酸树脂、硝基纤维素等制成药品包装用箔保护涂料。

Complexity of aluminium electrolyser production is analyzed, and motivation of production intelligence is explained.

摘要分析了电解槽生产的复杂性，提出生产智能理念的必要性。

Synthesis of n-butyl lactate is catalyzed by phosphotungstic acid and aluminium phosphotungstate.

以磷钨酸和磷钨酸为催化剂,用乳酸和正丁酸合成了乳酸正丁酯。

Air hole, burnthrough, cooapse and welding crackle occurred in the fixed overhead weld for aluminium and aluminium alloy tubes, above all the small-size thin wall tube.

针对及合金管,特别是小口径薄壁管固定口仰焊部位易出现气孔、烧穿、塌陷及焊接热裂纹等问题,分析问题存的原,从焊接工艺方面入手,提出一套消除气孔及烧穿的操作手法。

Abstract: The effect of the desaturation aging (DSA) treatment on the strength and the corrosion resistance of ultra high strength aluminium alloys were studied.

研究了缓饱和时效工艺（DSA）对超高强合金强度和抗腐蚀性能的影响。

Process of surface treatments include gold plating, silver plating ,nickel plating, chrome plating, tin plating, zinc plating, electrostatic painting, cataphoretic coating, aluminium oxidizing, etc.

产品的表面处理（镀金．银．镍．铬．锡．锌．静电喷涂．喷漆等）。

The formation mechanism of orange valvule-like pinhole in rolled aluminium foil was investigated by using optical microscopy,scanning electron microscopy,and energy dispersion X-ray spectrum.

利用光学显微镜、扫描电镜、能谱分析等试验手段对箔"桔瓣"形针孔形成的原进行了分析。

According to clients' different demands we can product vacual bags, cooking bags, aluminium foil bags, compound food bags, sealed bags, and so on.

所生产的产品有，真空袋，蒸煮袋，箔袋，复合食品包装袋，封口袋。背心袋等包装产品。可根据客户需求设计，生产定做各种包装。

In this paper, bromized polystyrene flame retardant was synthesized by electrophilic substitution of waste polystrene with bromine using aluminium ehlorid as catalyst.

本文利用三氯化作催化剂,废聚苯乙烯与溴发生亲电取代反应合成溴化聚苯乙烯阻燃剂。

Frame of the heating furnace like beer pasteurism sterilizer.Have an aluminium ingot preheat box.The box's length is near half a burdening span.

加热炉结构类似啤酒杀菌机，有一个锭预热箱，预热箱长度接近半个配料跨。

VD and working procedure.Experiments showed that major of the LF step foreign inclusions are aluminium sesquioxide. spotted non-deforming inclusion and sulphuret.

VD及成材工序现场取样.系统分析了各工序夹杂物的行为.特征.数量.变化历程及影响素.实验结果表明.

Xanthone was efficiently synthesized from o-chlorobenzoic acid first by etherization and then by Friedel-Crafts reaction in the presence of aluminium trichloride.

以邻氯苯甲酸为原料,先进行醚化,再三氯化的作用下进行傅-克反应,可简洁、高效的合成呫吨酮。

Aluminum toxity is the main factor that limits crops growth in the acid soil, and many crops response to micromole aluminium.

毒是酸性土壤限制作物生长的主要原之一,许多作物对微摩尔浓度的发生毒害反应。

The effect of process parameters on the electric insulance of micro arc oxidated ceramic coat on aluminium plate is studied.

研究了工艺参数对微弧氧化陶瓷层电绝缘性能的影响规律。

Aluminium electrlysis by means of low molecular ratio electrolyte is an important mark for centre-worked prebake cell at present.

摘要采用低分子比电解质进行电解生产是现代间下料预焙槽的重要标志。

Solid acid alchlor catalyst was prepared from anhydrous aluminium trichloride through liquid solid solvent method,with pretreated bentonite as support.

以无水三氯化为原料,并以处理过的膨润土为载体,采用液固溶剂法制备固体酸催化剂。