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The present invention relates to a hollow pearl nano cerium oxide and its preparation method.

本发明涉及一种中空珠状纳米氧化铈及其制备方法。

Cerium oxide has a wide range of uses, but many applications require special physics properties of particles. It is particle morphology, size, structure, dispersion, surface properties ,this physical and chemical properties, that determine their application field, but the traditional preparation process is difficult to control cerium oxide particle morphology and physical properties, thus making it difficult to meet the application requirements.

氧化铈有着广泛的用途，但很多方面的应用都要求其粒子具有特殊的物性，粒子的形貌、尺寸、结构、分散性、表面性能等物化性能决定其应用领域，但传统制备工艺难以控制氧化铈粒子的形貌及物性，从而难以满足应用的需求。

The affection is very 1 kind oddness of thing, you more know her it's wrong, more want to forget her, you more is unforgettable, I mean to say the wound of this affection to return chaperonage I a period of time until I run into better, so I have to work well mental state preparation

感情是一种很奇怪的东西，你越知道她不对，越想忘记她，你越是忘不了，我想说这段感情的创伤还将伴随着我一段时间直到我碰到更好的，所以我必须做好心理准备，不要想着能把她忘的一干二净的问题，但如果一旦想她的时候尽量找点其他的事情做，我相信我一定会碰到更好的人来埋葬这段背叛和自私的爱情

Preparation process of coal char samples is introduced in the last part of this chapter.

在本章最后介绍了整个研究过程中煤焦样品的制备过程。

It is shown that the surface structure, characteristic, and catalytic property of the catalysts are obviously affected by the catalyst preparation methods.

结果表明，镧助剂的引入使得铁锆催化剂的表面结构、性质、及催化性能等都发生了明显的变化。

In chapter 1, we review the latest advances of the preparation, characterization and applications of nanowires.

第一章，综述了纳米线的制备与生长机制、表征和应用的最新研究进展。

Firstly, the preparation and characterization of graphite oxide have been discussed.

首先，本文论述了氧化石墨的制备和表征。

After studying teachers' use of Geometric Supposer for one school year, Yerushalmy, Chazan, and Gordon (1988) concluded that for the teacher to be successful, he or she must know the subject matter, function as a leader and manager of a community of learners, be flexible, and have time for planning and preparation throughout the year.

在研究老师的一个学校年， Yerushalmy ， Chazan 和戈登(1988)的几何学 Supposer 使用之后得出结论为老师是成功的，他或者她一定知道服从的物质，如一位领袖和一个学习者的社区的经理的功能，是有柔性的，而且一整年有计划的时间和准备。

Aim To study the preparation conditions of the metal chelate gel with chitosan as support.

目的 研究利用壳聚糖为载体、戊二醛为交联剂、亚氨基二乙酸为螯合配基制备金属登合亲和吸附剂的条件。

It was also found that the composition, methods of preparation and the reduction temperature of the catalysts have the great influence on the chemisorption capacity a...

催化剂的组成、制备方法不同，其化学吸附性质和加氢活性也有较大的差异。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。