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In order to investigate the capabilities of zircon as waste forms for immobilizing simulated trivalent actinides, trivalent europium (Eu3+) was used as the simulacrum for trivalent actinides, the waste forms containing 20 mol% Eu3+ were successfully synthesized by high temperature solid reaction and using ZrO2, SiO2 and Eu2O3 powders as starting materials.

中文摘要:为研究锆英石基三价锕系模拟核素固化体的性能,利用Eu3+作为三价锕系核素模拟替代物质,以ZrO2、SiO2和Eu2O3粉体为原料采用高温固相法制备了包容Eu3+为20mol%的锆英石基固化体。

On the basics of briefly summarizing the research and application presents of building coatings and nano-composite building coatings in domestic and overseas, we presented a creative approach of modified exterior and interior building latex coatings applying inorganic nano-powders and its compound, systematically studied the effect of factors such as nano-material's category、additive capacity、dispersing method on the behavior of exterior building coating's weathering resistance、scratch resistance、water resistance、alkaline resistance and on the behavior of interior building coating's restraining bacterium、degrading all kinds of bad organic matter,and triumphantly developed nano-composite building latex coating.

本文在简要叙述国内外建筑涂料和纳米复合建筑涂料的应用研究现状的基础上,提出了使用无机纳米粉体及其复合材料改性建筑外墙乳胶漆的创新思路,系统地研究了纳米粉体材料的种类、添加量、分散方式等因素对外墙乳胶漆耐候性、耐洗刷性、耐水耐碱性等性能的影响,以及这些因素对内墙乳胶漆抗菌杀菌、降解有害有机物等性能的影响,成功地开发了纳米改性建筑外墙和内墙乳胶漆产品。

Amorphism can occur when carbon powders are refined further.

当作用时间较长时,碳粉会发生无定形化。

Raw Al2O3 were amorphously powders synthesized by Sol-Gel.

实验中化学镀R的原料粉是利用溶胶-凝胶方法合成的非晶Al2O3粉末。

SiC powders are synthesized by reducing silica with amylum in a flow argon atmosphere at 1500℃, 1600℃ and 1700℃, respectively.

以硅溶胶为硅源,淀粉为碳源,采用低温碳热还原法合成了SiC微粉。

The two antimonic composite oxide powders, SbFeO 3 and SbPbO 2.5, were prepared by co-precipitation.

锂离子电池具有电压高、安全性好、循环寿命长、无记忆效应、无污染等优点[1 ] 。

Through analysis of the components of coking on different parts of desullfur system of single tower and the waste water containing sulfur , we find the cause of coking in the stripping desulur system from single tower is the polymerization reaction of carbohydrate and the separattion of varied solid powders, organic compounds, and all corrosive productions of metal out of waste water in high temperature, therefore,the solving method is how to decrease the oil content ,how to depolymerize form the carbohydrate and how to antisepticize by vapour of waste water.

对单塔脱硫系统中不同部位的垢物及现场催化含硫污水进行了分析测定,结果表明:塔内污垢成分及含量随塔体部位的不同而不尽相同,单塔汽提脱硫系统中垢物的形成,主要是由于污水中所含各类粉尘、有机物、金属腐蚀物等在高温下因石油碳氢化合物的析出及其单体的聚合反应所致。如何降低污水中的含油成分、减少聚合反应的生成、防止污水蒸气对塔体材料的腐蚀,是阻垢、除垢和防垢应解决的关键问题。

With a view to the loose structure of historic stones, the further investigation of biomimetic protection is developed in consolidation. Referring to the architectonics theory, the replicas of rotten stones were prepared by using the powders and particles of calcium carbonate.

对石质文物表面进行仿生防护,将生物矿化作用引入石质文物保护研究领域,提出采用"仿生"的方法保护石质文物的新思路,试验证明方法可行。

Sol-gel Autoignition Synthesis, simple, self-cleaning and easy to undertake scale production, is the one of the prospective routes for manufacturing barium titanate powders.BaTiO3 nanopowders with the particle size 20-90nm, specific surface area 15m2/g, fine particle distribution, ratio of Ba/Ti 1.002 and with the dielectric constant more than 3000, were synthesized by SAS BaTiO3-TiCl4-ammonia-citric acid system.

本文自己组装的溶胶凝胶自燃合成系统,利用对Ba(NO_3)_2-TiCl_4-柠檬酸-氨水体系进行自燃合成研究,制备了具有纳米尺度的近球形BaTiO_3颗粒,粒径介于20-90nm之间,比表面积15m~2/g,分布范围较窄,Ba/Ti为1.002,器件介电常数最高达3000多。

Talc, another popular ingredient found in many baby powders, can act as a cancer-causing substance when inhaled.

滑石,另一个受欢迎的成分,发现在许多婴儿粉末,可作为癌症造成的物质时,吸入。

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I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。