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1) three-way catalytic performance 点击朗读

三效催化性能

The major effectors of three-way catalytic performance of Pd-only automobile exhaust catalysts were presented and discussed,which are the selection of additives,the loading methods of Pd,the preparation parameters and so on.

主要介绍了单钯汽车尾气催化剂的发展进程,阐述了单钯汽车尾气催化剂三效催化性能的主要影响因素,包括:助剂的选取、贵金属钯的负载方法和催化剂的制备工艺等,展望了未来的发展前景和趋势。

更多例句>>

2) three-way catalytic activity 点击朗读

三效催化活性

3) catalytic effectiveness 点击朗读

催化效能

The result shows that: the energy difference between one pair of isomers is very little;the neutral molecule can make the reaction easy and the order of their catalytic effectiveness is NH3﹥H2O﹥HF.

0×105Pa下,气相氨基氰与甲二亚胺分子间的异构反应,各催化剂小分子的催化效能顺序为:NH3>H2O>HF。

4) three way catalyst 点击朗读

三效催化剂

95)+Al_2O_3 three way catalysts. 点击朗读

95)+Al_2O_3三效催化剂。

The necessity and possibility to replace noble metal catalyst in the technology of automotive exhaust purification,and the role of composite oxide of rare earth and perovskite in the three way catalyst were reviewed.

阐述了汽车尾气净化工艺中替代贵金属催化剂的必要性和可能性，评述了稀土钙钛矿复合氧化物在三效催化剂中的作用，指出这类贱金属催化剂是研制、开发三效汽车排气催化剂的重要方向。

Owing to shortage of noble metals, increasingly stringent regulations and disadvantages of conventional design methods of three way catalysts, a novel design method using artificial neural networks for three way catalysts containing Cex Zr1-x O2 was put forward.

提出一种含Cex Zr1-x O2的三效催化剂的设计方法,即利用人工神经网络来进行辅助设计。

更多例句>>

5) three-way catalysts 点击朗读

三效催化剂

Three specifications of the three-way catalysts(TWC)were prepared using an excellent Ceria-Zirconia solid solutions as oxygen storage materials to match the three vehicles made in China reaching the Eu III standard.

为配合3种国产车达到欧Ⅲ排放标准,以一种性能优异的铈锆固溶体作为储氧材料,制成3种规格的三效催化剂。

4-x)Tb_(x)O_(2-y) of three-way catalysts(TWCs) were prepared by coprecipitation and sol-gel methods.

X射线衍射和拉曼光谱证实,形成的固溶体为萤石型立方相结构;X光电子能谱显示,固溶体表面Ce和Tb主要以Ce4+和Tb3+形式存在;粒度分布及透射电镜分析发现,制备的固溶体在液相中存在着严重的团聚现象;应用在含Pt、Rh和Pd(高比例Pd含量)的三效催化剂的制备。

The three-way catalysts(TWCs) which were used widely in recent time are introduced;and the direction of development and problems to be solved in the future are also pointed out.

文章介绍了当今普遍使用的三效催化剂(TWCs-Three way Catalysts),提出了未来汽车尾气净化催化剂的发展趋势及需要解决的问题。

更多例句>>

6) TWC

三效催化剂

1)O_2 were used to prepare the three-way catalyst(TWC)for the motorcycle exhaust gas and its influence on the performance of TWC was investigated.

将所制备的复合氧化物用于摩托车尾气净化三效催化剂,模拟摩托车尾气的组成,分别对Pt-Rh/Ce_(0。

Three way catalyst(TWC) is the main method to purify the automobile exhaust,and has already been developed into its fourth generation by now.

三效催化剂是汽车尾气净化最主要的方法,目前已发展到第四代。

This paper introduces the progress of catalysts for vehicle exhaust gas, the principle of three-way catalyst (TWC) and the components of catalysts for vehicle exhaust gas.

介绍了汽车尾气净化催化剂的发展过程、三效催化剂的净化原理以及催化剂的组成

更多例句>>

补充资料：不锈钢的物理性能、力学性能和耐热性能

不锈钢的物理性能

不锈钢和碳钢的物理性能数据对比，碳钢的密度略高于铁素体和马氏体型不锈钢，而略低于奥氏体型不锈钢；电阻率按碳钢、铁素体型、马氏体型和奥氏体型不锈钢排序递增；线膨胀系数大小的排序也类似，奥氏体型不锈钢最高而碳钢最小；碳钢、铁素体型和马氏体型不锈钢有磁性，奥氏体型不锈钢无磁性，但其冷加工硬化生成成氏体相变时将会产生磁性，可用热处理方法来消除这种马氏体组织而恢复其无磁性。

奥氏体型不锈钢与碳钢相比，具有下列特点：

1）高的电阴率，约为碳钢的5倍。

2）大的线膨胀系数，比碳钢大40％，并随着温度的升高，线膨胀系数的数值也相应地提高。

3）低的热导率，约为碳钢的1/3。

不锈钢的力学性

不论不锈钢板还是耐热钢板，奥氏体型的钢板的综合性能最好，既有足够的强度，又有极好的塑性同时硬度也不高，这也是它们被广泛采用的原因之一。奥氏体型不锈钢同绝大多数的其它金属材料相似，其抗拉强度、屈服强度和硬度，随着温度的降低而提高；塑性则随着温度降低而减小。其抗拉强度在温度15~80°C范围内增长是较为均匀的。更重要的是：随着温度的降低，其冲击韧度减少缓慢，并不存在脆性转变温度。所以不锈钢在低温时能保持足够的塑性和韧性。

不锈钢的耐热性能

耐热性能是指高温下，既有抗氧化或耐气体介质腐蚀的性能即热稳定性，同时在高温时双有足够的强度即热强性。

不锈钢国际标准标准

标准标准名

GB 中华人民共和国国家标准（国家技术监督局）

KS 韩国工业标准协会规格Korean Standard

AISI 美国钢铁协会规格America Iron and Steel Institute

SAE 美国汽车技术者协会规格Society of Automative Engineers

ASTM 美国材料试验协会规格American Society for Testing and Material

AWS 美国焊接协会规格American Welding Society

ASME 美国机械技术者协会规格American Society of Mechanical Engineers

BS 英国标准规格British Standard

DIN 德国标准规格Deutsch Industria Normen

CAS 加拿大标准规格Canadian Standard Associatoin

API 美国石油协会规格American Petroleum Association

KR 韩国船舶协会规格Korean Resister of Shipping

NK 日本省事协会规格Hihon Kanji Koki

LR 英国船舶协会规格Llouds Register of Shipping

说明：补充资料仅用于学习参考，请勿用于其它任何用途。

参考词条

三效催化法三效催化器催化性能三效催化转化器

说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。
	您的位置：首页 -> 词典 -> 三效催化性能 1) three-way catalytic performance 三效催化性能 1. The major effectors of three-way catalytic performance of Pd-only automobile exhaust catalysts were presented and discussed,which are the selection of additives,the loading methods of Pd,the preparation parameters and so on. 主要介绍了单钯汽车尾气催化剂的发展进程,阐述了单钯汽车尾气催化剂三效催化性能的主要影响因素,包括:助剂的选取、贵金属钯的负载方法和催化剂的制备工艺等,展望了未来的发展前景和趋势。更多例句>> 2) three-way catalytic activity 三效催化活性 3) catalytic effectiveness 催化效能 1. The result shows that: the energy difference between one pair of isomers is very little;the neutral molecule can make the reaction easy and the order of their catalytic effectiveness is NH3﹥H2O﹥HF. 0×105Pa下,气相氨基氰与甲二亚胺分子间的异构反应,各催化剂小分子的催化效能顺序为:NH3>H2O>HF。 4) three way catalyst 三效催化剂 1. 95)+Al_2O_3 three way catalysts. 95)+Al_2O_3三效催化剂。 2. The necessity and possibility to replace noble metal catalyst in the technology of automotive exhaust purification,and the role of composite oxide of rare earth and perovskite in the three way catalyst were reviewed. 阐述了汽车尾气净化工艺中替代贵金属催化剂的必要性和可能性，评述了稀土钙钛矿复合氧化物在三效催化剂中的作用，指出这类贱金属催化剂是研制、开发三效汽车排气催化剂的重要方向。 3. Owing to shortage of noble metals, increasingly stringent regulations and disadvantages of conventional design methods of three way catalysts, a novel design method using artificial neural networks for three way catalysts containing Cex Zr1-x O2 was put forward. 提出一种含Cex Zr1-x O2的三效催化剂的设计方法,即利用人工神经网络来进行辅助设计。更多例句>> 5) three-way catalysts 三效催化剂 1. Three specifications of the three-way catalysts(TWC)were prepared using an excellent Ceria-Zirconia solid solutions as oxygen storage materials to match the three vehicles made in China reaching the Eu III standard. 为配合3种国产车达到欧Ⅲ排放标准,以一种性能优异的铈锆固溶体作为储氧材料,制成3种规格的三效催化剂。 2. 4-x)Tb_(x)O_(2-y) of three-way catalysts(TWCs) were prepared by coprecipitation and sol-gel methods. X射线衍射和拉曼光谱证实,形成的固溶体为萤石型立方相结构;X光电子能谱显示,固溶体表面Ce和Tb主要以Ce4+和Tb3+形式存在;粒度分布及透射电镜分析发现,制备的固溶体在液相中存在着严重的团聚现象;应用在含Pt、Rh和Pd(高比例Pd含量)的三效催化剂的制备。 3. The three-way catalysts(TWCs) which were used widely in recent time are introduced;and the direction of development and problems to be solved in the future are also pointed out. 文章介绍了当今普遍使用的三效催化剂(TWCs-Three way Catalysts),提出了未来汽车尾气净化催化剂的发展趋势及需要解决的问题。更多例句>> 6) TWC 三效催化剂 1. 1)O_2 were used to prepare the three-way catalyst(TWC)for the motorcycle exhaust gas and its influence on the performance of TWC was investigated. 将所制备的复合氧化物用于摩托车尾气净化三效催化剂,模拟摩托车尾气的组成,分别对Pt-Rh/Ce_(0。 2. Three way catalyst(TWC) is the main method to purify the automobile exhaust,and has already been developed into its fourth generation by now. 三效催化剂是汽车尾气净化最主要的方法,目前已发展到第四代。 3. This paper introduces the progress of catalysts for vehicle exhaust gas, the principle of three-way catalyst (TWC) and the components of catalysts for vehicle exhaust gas. 介绍了汽车尾气净化催化剂的发展过程、三效催化剂的净化原理以及催化剂的组成更多例句>> 补充资料：不锈钢的物理性能、力学性能和耐热性能不锈钢的物理性能不锈钢和碳钢的物理性能数据对比，碳钢的密度略高于铁素体和马氏体型不锈钢，而略低于奥氏体型不锈钢；电阻率按碳钢、铁素体型、马氏体型和奥氏体型不锈钢排序递增；线膨胀系数大小的排序也类似，奥氏体型不锈钢最高而碳钢最小；碳钢、铁素体型和马氏体型不锈钢有磁性，奥氏体型不锈钢无磁性，但其冷加工硬化生成成氏体相变时将会产生磁性，可用热处理方法来消除这种马氏体组织而恢复其无磁性。奥氏体型不锈钢与碳钢相比，具有下列特点： 1）高的电阴率，约为碳钢的5倍。 2）大的线膨胀系数，比碳钢大40％，并随着温度的升高，线膨胀系数的数值也相应地提高。 3）低的热导率，约为碳钢的1/3。不锈钢的力学性不论不锈钢板还是耐热钢板，奥氏体型的钢板的综合性能最好，既有足够的强度，又有极好的塑性同时硬度也不高，这也是它们被广泛采用的原因之一。奥氏体型不锈钢同绝大多数的其它金属材料相似，其抗拉强度、屈服强度和硬度，随着温度的降低而提高；塑性则随着温度降低而减小。其抗拉强度在温度15~80°C范围内增长是较为均匀的。更重要的是：随着温度的降低，其冲击韧度减少缓慢，并不存在脆性转变温度。所以不锈钢在低温时能保持足够的塑性和韧性。不锈钢的耐热性能耐热性能是指高温下，既有抗氧化或耐气体介质腐蚀的性能即热稳定性，同时在高温时双有足够的强度即热强性。不锈钢国际标准标准标准标准名 GB 中华人民共和国国家标准（国家技术监督局） KS 韩国工业标准协会规格Korean Standard AISI 美国钢铁协会规格America Iron and Steel Institute SAE 美国汽车技术者协会规格Society of Automative Engineers ASTM 美国材料试验协会规格American Society for Testing and Material AWS 美国焊接协会规格American Welding Society ASME 美国机械技术者协会规格American Society of Mechanical Engineers BS 英国标准规格British Standard DIN 德国标准规格Deutsch Industria Normen CAS 加拿大标准规格Canadian Standard Associatoin API 美国石油协会规格American Petroleum Association KR 韩国船舶协会规格Korean Resister of Shipping NK 日本省事协会规格Hihon Kanji Koki LR 英国船舶协会规格Llouds Register of Shipping 说明：补充资料仅用于学习参考，请勿用于其它任何用途。参考词条

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