氧化铝

Taking the andalusitc imported from South Africa and alumina fiber Produced by Luoyang Institute of Refractory Research as raw materials, and adding polyvinyl and aluminum sulphate as binder respectively, through dispersion, degassing,compression molding process and sintering at several elevated temperatures, samples of the composites with different contents of fibor were made.

采用进口南非红柱石和洛阳耐火材料研究院生产的氧化铝纤维为原料，分别用聚乙烯醇和硫酸铝作为结合剂，经过分散、真空脱气、压力成型及在不同的温度下高温烧结制得氧化铝纤维-红柱石复合材料。

Taking the andalusite from South Africa and alumina fiber as raw materials, adding aluminum sulphate as binder, fabrication and properties of alumina fiber reinforced andalusite composite was studied through wet dispersion, mould pressing and sintering processes.

以红柱石和氧化铝纤维为原料，用硫酸铝作为结合剂，经过分散、混合、半干法成型、高温烧成工艺，对氧化铝纤维增强红柱石基复合材料的制备及性能进行了研究。

By the OM and SEM observation of solidification microstructure, the interfacial reaction between TiAl alloy and Al2O3 crucible was serious, and a large number of α-Al2O3 inclusion formed in the solidification microstructure. The interfacial reaction between TiAl alloy and ZrO2 crucible occurred only on the sample surface, but the crucible was not stable at high temperature and a tack coating was formed, clinging tightly with TiAl alloy. C element in the graphite crucible changed the original solidification path of TiAl alloy, and club-shaped γ-TiAl phases formed.

通过用光学显微镜和扫描电镜对凝固组织观察发现，TiAl合金与氧化铝坩埚之间的界面反应较为严重，在凝固组织中形成了大量氧化铝夹杂；TiAl合金与氧化锆坩埚的界面反应仅发生在试样表面，但该坩埚在高温下不稳定，并在试棒表面形成一层无法剥离的粘结层；石墨坩埚中的C元素改变了原有TiAl合金的凝固路径，生成了棒状的γ-TiAl相。

The oil shale ash is disintegrated into fine powder less than 150 eye to be calcined at a certain temperature, then sulfuric acid solution is added for performing acid dipping, after solid-liquid separation and solid residue removal, aluminum sulfate solution is obtained and is then filtered after sodium hydroxide solution is added in, further metallic ions as Ca2 , Mg2 , Fe3 , Fe2 and the like are filtered from the solution, thereby sodium aluminate solution is obtained, gas of carbon dioxide is communicated into the sodium aluminate solution to obtain aluminum hydroxide sediment, and after drying and calcining aluminum hydroxide powder is obtained.

将油页岩灰渣粉碎至＜150目的细粉，在一定温度下煅烧，加入硫酸溶液进行酸浸，固液分离，去除固体残渣，得硫酸铝滤液，加氢氧化钠溶液后过滤，滤除溶液中的Ca 2 、Mg 2 、Fe 3 、Fe 2 等金属离子，得偏铝酸钠溶液，向偏铝酸钠溶液通入二氧化碳气体，得到氢氧化铝沉淀，经烘干、煅烧得到氢氧化铝粉末。

Important compounds include alums; alumina, useful as corundum and as a carrier for many catalyst s; aluminum chloride, a widely used catalyst for organic syntheses; and aluminum hydroxide, used to waterproof fabrics.

重要的化合物包括了：明矾；氧化铝，可用作各种化学反应催化剂的载体；氯化铝，广泛用来制备各种各样的有机化合物；氢氧化铝，用于制造防水织物。

Important compounds include alums; alumina, useful as corundum and as a carrier for many catalysts; aluminum chloride, a widely used catalyst for organic syntheses; and aluminum hydroxide, used to waterproof fabrics .

重要的化合物包括了：明矾；氧化铝，可用作各种化学反应催化剂的载体；氯化铝，广泛用来制备各种各样的有机化合物；氢氧化铝，用于制造防水织物。

Important compounds include alums; alumina, useful as corundum and as a carrier for many catalysts; aluminum chloride, a widely used catalyst for organic syntheses; and aluminum hydr oxide , used to waterproof fabrics.

重要的化合物包括了：明矾；氧化铝，可用作各种化学反应催化剂的载体；氯化铝，广泛用来制备各种各样的有机化合物；氢氧化铝，用于制造防水织物。

Important compounds include alums; alumina, useful as corundum and as a carrier for many catalysts; aluminum chloride, a widely used catalyst for organic syntheses; and aluminum hydroxide, used to waterproof fabrics.

重要的化合物包括了：明矾；氧化铝，可用作各种化学反应催化剂的载体；氯化铝，广泛用来制备各种各样的有机化合物；氢氧化铝，用于制造防水织物。到中国译典经典版本中查找关于photoengraving的最新解释和例句。。。。

The PSU has planned a total outlay of Rs 9453.66 crores in the 11th Plan for implementing various projects, which include 4.6 lakh TPY smelter, building port for alumina export and caustic soda import and capacity expansion of the alumina plant to 2.1 MMTPY besides mining 6.3 MMTPY bauxite, he said.

公司在11个五年发展计划中共拨945.366亿卢比开展各种项目，其中包括年产46万吨的冶炼厂、为氧化铝出口和苛性钠进口而建的港口及将氧化铝精炼厂产能提升至210万吨及开采每年630万吨铝土矿等。

This product is described as a high density, full-fired, 96% pure alumina ceramic that provides exceptional abrasion and corrosion resistance as well as high mechanical strength and electrical resistance for continuous operating temperatures to 1650°C.

这种产品是一种高度致密的、完全烧结的、氧化铝纯度为96%的氧化铝陶瓷，其具有优异的耐磨性能和抗腐蚀性能以及高的机械强度和电绝缘性能，可在高达1650℃的温度下连续使用。

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。