aluminium 高考四级考研GRE

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

采用热固丙烯酸树脂、硝基纤维素等制成药包装用箔保护涂料。

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

摘要分析了电解槽生产复杂，提出生产智能理念必要。

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

别把勺留在盐罐, 因为盐腐蚀。

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。

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

以方镁石、镁尖晶石、铬矿为主晶相耐火制。

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

以磷钨酸和磷钨酸为催剂,用乳酸和正丁酸合成了乳酸正丁酯。

Aluminium is a kind of metal.

是一种金属。

The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro-duced.

提供了廉价磷酸二氢制备方法，介绍了它在耐火材料应用。

The article analyzes the reasion of poor effect for cuppy fixed dummy block in aluminium alloy extrusion press.

综合分析了杯碗式固定挤压垫实际密封效果差原因,针对固定挤压垫结构进行了改进。

The new preparation method of Al-Ti-C grain refiner was studied with aluminium ingot,potassium hexafluorotitanate,aluminium powder,hexachloroethane and carbon powder.

提出了利用锭、氟钛酸钾、粉、六氯乙烷和碳粉制备钛碳晶粒细剂新方法。

The isopropyl chloracetate was synthesized by esterification of chloracetic acid with isopropyl alcohol using aluminium phosphotungstate as catalyst.

以氯乙酸和异丙醇为原料,磷钨酸作催剂进行酯反应,合成氯乙酸异丙酯。

Metal hydroxides like aluminium trihydroxide (ATH) or magnesium dihydroxide (MDH) are commonly used halogen-free flame retardants in polyolefins.

金属氧物如氢氧（ATH）或氢氧镁（MDH）是常用无卤阻燃体系。

Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

由苯与异丁酰氯在无水三氯作催剂条件下制备苯基异丙基酮。

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

以无水三氯为原料,并以处理过膨润土为载体,采用液固溶剂法制备固体酸催剂。

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重要标志。

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陶瓷层电绝缘能影响规律。

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

毒是酸土壤限制作物生长主要原因之一,许多作物对微摩尔浓度发生毒害反应。

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,再在三氯作用下进行傅-克反应,可简洁、高效合成呫吨酮。

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行为.特征.数量.变历程及影响因素.实验结果表明.