氧化铝

Strong adsorbents such as zeolites and activated alumina may not work well as it will be harder to desorb impurities from them.

沸石和活性氧化铝之类的强吸附剂可能效果不好，因为杂质难以从这些强吸附剂中解吸附。

The research in alumina layer includes exposing to oxygen at different temperatures and desorbing behaviors under different heating rates.

在本论文最后的附录中包含对氧化铝层本身的研究，包括不同温度曝氧和不同加热速率下的脱附行为的实验，以及本文实验资料补遗。

Titanium oxide; aluminium oxide; selective hydrogenation; dienes

TiO ，载体，加氢反应，制备，条件氧化钛；氧化铝；选择加氢；二烯烃

Wicke-Kallenbach steady state diffusion experiment of binary and ternary diffusions of ethylene,argon and carbon dioxide were carried out in two kinds of alumina.

在两种氧化铝中，分别采用C2H4、Ar和CO2进行了两组分和三组分的Wicke-Kallenbach定态扩散实验。

Wicke-Kallenbach steady state diffusion experiment of binary and ternary diffusions of ethylene,argon and carbon dioxide were carried out in two kinds of alumina.

摘 要：在两种氧化铝中，分别采用C2H4、Ar和CO2进行了两组分和三组分的Wicke-Kallenbach定态扩散实验。

Anion exchange resin was not suitable for the separation as stationary phase due to the strong adsorption toward catechol.The chemicals of eluates were measured by UV and IR.Terpene-catechol resin can be used for preparing copolymeric coating from terpene-catechol resin with raw lacquer.

通过对洗脱液进行紫外光谱分析，表明用中性氧化铝作固定相，分别用汽油、乙醇和NaOH-乙醇溶液洗脱，能较好地分离萜烯树脂和萜烯-邻苯二酚树脂。

Results showed that terpene-catechol resin could be synthesized directly with the proposed method.The synthesized terpene-catechol resin could be separated from terpene resin and catechol on neutral alumina column with petroleum,absolute ethanol and 5％ NaOH-ethanol solution as eluates.

采用柱层析法分离萜烯树脂和萜烯-邻苯二酚树脂，分别采用中性氧化铝和强碱性阴离子交换树脂作固定相，汽油、乙醇、NaOH-乙醇溶液作洗脱剂对萜烯树脂和萜烯-邻苯二酚树脂进行分离提纯。

The aluminas show a good catalytic activity and excellent selectivity towards the epoxides.

氧化铝显示出良好的催化活性和对环氧化物优异的选择性。

Extenders for paints - Specifications and methods of test - Part 16 : aluminium hydroxides .

涂料用补充剂。规范和试验方法。第16部分：氢氧化铝

The faying surface of the samples were ground and then polished in 1.0 μm alumina and cleaned ultrasonically in acetone for 15 minutes before assembling the braze joint.

该发英表面的样本，然后在1.0微米抛光氧化铝和在丙酮超声清洗15分钟，然后组装钎联合。

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。