查询词典 alumina

On a cold February day in 1886, he filled the crucible with a cryolite bath containing alumina and passed an electric current through it.

大学毕业后，霍尔在自己简陋的实验室里学会了如何制氧化铝。

The results show that the crystallinity of NCPE decreases with increase of the number of alumina nanoparticles.

结果显示，随着氧化铝纳米粒子含量的增加， NCPE的结晶度降低，离子导电率升高。

Employing dealkylation of cumene as the controlling reaction, the authors investigated the poisoning action of pyridine on a silica-alumina catalyst.

本文以异丙基苯的裂化作为控制反应，用动力学方法考察了硅铝催化剂为吡啶中毒的情况。

The effects of sintering temperature and sintering-aid content on densification and grain growth of sub-micron alumina were systemically studied.

系统研究了烧结温度、烧结助剂含量对亚微米晶氧化铝陶瓷的致密化过程及显微结构的影响。

Objective To investigate the influence of the thickness of opaque-dentine porcelain on the composite color of opaque dentine and infiltrated alumina substrates complex.

目的：研究VidadurAlpha饰瓷中不透明牙本质瓷的厚度对In-Ceram渗透铝瓷复合颜色的影响。

In this paper,based on comprehensive information,combined with that bauxite is commouly characterized by diaspore,higher Al and Si,lower Fe, the Series-combination with Ore Mixing technology is put forward as the alumina production process.

本文在综合资料的基础上，结合我国铝土矿多为一水型硬铝石，具有高铝、高硅、低铁的特点，提出配矿串联法生产氧化铝工艺。

Effect of silicon dioxide and alumina filler with different contents on the wear-resistance properties of polyurethane elastomer was studied.

研究了不同质量分数的白碳黑与Al2O3填料对聚氨酯弹性体耐冲蚀磨损性能的影响。

Whole alumina and electroanalysis aluminous industry will be attacked once more by heavy retype, and the biggest challenge that faces among them will come from an international market.

整个氧化铝和电解铝行业将会再度受到沉重打击，而其中面临的最大挑战将来自国际市场。

It is difficult to detect the alumina concentration, polar distance, temperature and mole ratio on-line, so it is more easily to control pre-baked aluminium electrolytic cell by the method of intelligent fuzzy control.

因此，对于预焙铝电解槽的控制，采用智能控制方法更容易达到预期的控制效果。

The crude extracts were isolated by column chromatography of alkaline alumina, and a bioactive fraction was obtained from the 80%ethanol eluate.

此液经碱性氧化铝柱层析分离，其80%乙醇洗脱的 C 组分显示生物活性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。