氧化铝

The size and aspect ratio of the powder can be adjusted and controlled by changing the amount of additives.

通过改变添加剂的用量，可对片状氧化铝的粒度及径厚比进行控制和调整。

According to the quantitative analysis, the critical time to stop or run back the wheel and shaft when the driving rotor generating an impulse during strike of the return high-pressure gas is calculated...

介绍了我厂关键设备氧化铝沸腾焙烧炉罗茨鼓风机的功能，及自1997年11月投产以来先后发生四次事故的情况，重点分析了由于高压气体回流冲击而使同步齿轮与轴配合面产生相对滑移的可能，通过定量分析计算高压气体回流冲击时对主动转子产生冲量使其停止或反转的临界时间，同时提出了预防措施。

The phosphors were obtained by the high temperature solid state reaction method and sol-gel method with barium carbonate, aluminium hydrate and manganese dioxide.

本文以碳酸钡，氢氧化铝，二氧化锰及稀土元素等为原料，通过高温固相和溶胶凝胶两种方法合成绿色荧光粉。

Sinte-roasting between coal and Alumina or coal and bauxite were researched in detail in this paper.

本论文主要研究了煤和氧化铝以及铝土矿的烧结工艺。

We do believe the expansion in alumina refineries will lead to some tightness in the domestic bauxite market.

至少在未来的1至2年，我们认为氧化铝精炼厂的迅速扩张必然会导致铝土矿市场的供应紧张。

"We don't support expansion of alumina production because we're short of bauxite," Wen said.

他表示，"我们并不支持氧化铝产能扩张，因为我们的铝土矿很短缺。"

The company is mainly operating the domestic and international trade of the alumina, aluminum ingots and bauxite.

公司主要经营氧化铝、铝锭、铝土矿的国内及国际贸易。

Undertook be commentinged integratedly to the current situation of resource of our country bauxite and alumina industry.

对我国铝土矿资源及氧化铝工业的现状进行了综合评述。

Under the basic condition, benzylacetone (1) was prepared by condensation with benzaldehyde and acetone.

以苯甲醛和丙酮为原料，氟化钾氧化铝作催化剂合成了苄叉丙酮。

It presents historical demand data (1997, 2002, 2007) and forecasts for 2012 and 2017 by type (e.g., alumina, titanate, ferrite, zirconate, silicon carbide, cordierite, beryllia, silicon nitride), product (e.g., monolithics, coatings, matrix composites), process and market (e.g., electronic, electrical, industrial, transportation, chemicals and plastics, pollution control).

提供了该行业的历史需求数据（ 1997年， 2002年和2007年），并根据类型（例如，氧化铝，钛，铁，锆，碳化硅，堇青石，铍，氮化硅），产品，加工及应用市场（例如，电子，电力，工业，交通运输，化工和塑料，污染控制）预测了2012年和2017年的市场。

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。