机械密封：采用WB2型、ST型不用冷却水可调式端面密封技术，由碳化硅，高纯度氧化铝陶瓷、填充四氟，石墨等材料制成。
Mechanical seal: use of WB2 and st non-water-cooled adjustable end face sealing technology, composed of silicon carbide, high purity alumina ceramic, packing PTFE and graphite etc.
指出了用各种方法制得的氧化铝粉末的粒径、晶型和纯度，并比较了各类方法的优缺点。
The particle size, crystal phase and purity quotient of alumina powder prepared by different kinds of methods are suggested. Their advantages and disadvantages are also compared.
以工业氢氧化铝和硫酸为原料，采用两步纯化溶液法制得了纯度为99.99%的氢氧化铝粉。
Aluminium hydroxide with 99.99% of purity was obtained by two-step purifying aluminium sulfate solution made from aluminium hydroxide and sulfuric acid with industry purity.
经多极雾化活化设备处理得到的活性铝粉，可在不添加任何化学试剂的条件下与水发生持续水解反应，获得高纯度氢氧化铝粉体。
The activated aluminium powder had been produced by multistage-spraying and spinning atomized equipment and can continuously hydrolyze with water without any chemical reagent.
一种生产氢氧化铝氢氧化铝这样一个具有高亮度，高纯度的方法提供。
An aluminum hydroxide having high purity with high brightness and a method for producing such an aluminum hydroxide are provided.
ASPA - 1型和aspa - 2型的氧化铝—氧化硅纤维纸是优质的轻质耐火材料，它们由高纯度的氧化铝—氧化硅纤维制造成高弹性的薄片状的。
Types ASPA-1 and ASPA-2 alumina-silica fiber paper are premium grade lightweight refractory material made from high-purity alumina-silica fibers formed into highly flexible sheets.
灯具散热器结构为铝拉伸型材，高纯度阳极氧化铝板拉抻反射罩。
The structure of the lamp radiator is made of stretched aluminum, with stretched high purity anodized aluminum plate as reflex housing.
灯具散热器结构为铝拉伸型材，高纯度阳极氧化铝板拉抻反射罩。
The heat sink of lamp is made of stretched aluminum, with its reflex housing made of stretched high-purity anodized aluminum plate.
灯具散热器结构为铝拉伸型材，高纯度阳极氧化铝板拉抻反射罩。
The heat sink of lamp is made of stretched aluminum, with its reflex housing made of stretched high-purity anodized aluminum plate.
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