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CeO2 is a cheap and of use wide material, it is used in optical materials. polishing agents. ultraviolet absorption materials. the cleaning catalyst of car waste gases. chemical decolorant of glass. radiation-resisting glass. permanent magnet. electronic ceramics etc. After it becomes nanoparticle, it will show some new properties and applications. For example, CeO2 nanocrystal is a better promoter of Cytochrome C and the stabilizer of Zr02 ceramics.

CeO_2是一种廉价而用途极广的材料，如用于发光材料、抛光剂、紫外吸收材料、汽车尾气净化催化剂、玻璃的化学脱色剂、耐辐射玻璃、永磁体、电子陶瓷等，纳米化后将出现一些新的性质及应用，如CeO_2纳米晶是细胞色素C的良好的促进剂，还用于ZrO_2陶瓷的稳定剂。

CeO22 is used as optical materials, polishing agents, ultraviolet absorption materials, the cleaning catalyst of cars waste gases, chemical decolorant of glass, radiation-resisting glass permanent magnet, electronic ceramics etc. If it is processed into nanoparticles, it will exhibit some novel properties led to varied applications.

CeO_2是一种廉价而用途极广的材料，如用于发光材料、抛光剂、紫外吸收材料、汽车尾气净化催化剂、玻璃的化学退色剂、耐辐射玻璃、永磁体、电子陶瓷等，其纳米化后将出现一些新的性质及应用，如ceOZ纳米晶是细胞色素C的良好的催进剂，还用作zro：陶瓷的稳定剂，由于ceo：折射率高，稳定性好，常用于制备减反射膜等。

CO2-Forced Climate and Vegetation Instability During Late Paleozoic Deglaciation - The covariance of atmospheric CO2 levels, surface temperatures, and global ice volume indicates that greenhouse gases controlled climate about 300 million years ago.

二氧化碳被迫在晚古生代气候和植被不稳定冰消-方差大气二氧化碳水平，表面温度、与全球冰量显示控制温室气体气候约三亿多年ago.authors：伊莎贝尔页montańez，尼尔j。

You'll also need to install a heater or pond deicer, which will release toxic gases and provide more oxygen for the fish.

您还需要安装一个加热器或池塘除冰，这将释放有毒气体，并提供更多的氧气的鱼。

Charcoal is employed widely as a deodorizer because it absorbs gases good.

参考译文：木炭因为其对气体良好的吸收而被广泛用作除臭剂。

1 List the elements in Group 13, 14, and 15 and indicate the ones that are diatomic gases

列出13， 14，和 15族的元素，并指出哪些是双原子气体，非金属，准金

When the concentration of tested gases was 2000 mL/m3, chloroform, ethylene dichloride, formaldehyde and benzene did not interfere with the determination of acetone.

当各测试气体浓度均为2000 mL/m3时，三氯甲烷、二氯乙烷、甲醛和苯气体不干扰丙酮的测定。

In evaluating the dielectric strength of gases and gas mixtures, the com- monly used method, i.

通常采用的评定气体和混合气体耐电强度的方法，即将均匀场间隙中测得的击穿电压与参考气体相比，实际上并不能反映不同气体在工程应用中绝缘性能的优劣。

To diffuse is the general property of gases.

扩散是气体的一般特征。

With the development of economy, more and more greenhouse gases are being discharged into the air.

随着经济的发展，更多的温室气体被排放到大气中。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。