查询词典 tungsten

To improve the resistance to abrasion for surface of cast iron,the wear resistibility of grey cast iron HT200 is increased by employing inert gas tungsten arc remelt and fast solidified.

为了提高铸铁表面的耐磨性，以HT200为试验材料，用钨极氩弧对其进行了局部重熔强化的系统研究，得出了相关工艺参数对重熔处理后表层组织和性能的影响规律。

The characteristic capability and usage of temperature sensor of tungsten and rhenium thermocouple were expounded.

本文阐述了钨铼热电偶等特种温度传感器的特点、性能及应用，并着重探讨了当前测温领域热点问题。

Catalysts based on titanium [10], manganese [11], tungsten [12] and rhenium [13] have been described.

基于钛、锰、钨和铼的催化剂已经做了描述。

The analysis of the weak signal circuit, amplifying circuit of the signal and power circuit in the thermal conductivity detector has been done, and the characteristic of the circuits with the rhenium tungsten filament is designed.

针对气相色谱热导检测器的弱信号失真和电源不稳定问题，研究与设计热导检测器的弱信号测量电路、信号放大电路以及电源电路。

Characteristics of Scandate cathodes with Scandia doped tungsten bodies have been investigated in this work.

本文研究具有氧化钪掺杂钨基体钪酸盐阴极的性能。

The Scandia doped tungsten powders were made by both liquid –solid doping method and liquid-liquid doping method on the basis of previous research.

研究表明在改进压制、烧结技术的基础上，可以获得具有适当孔度的亚微米结构多孔基体。

The Scandia doped tungsten powders were made by both liquid-solid doping method and liquid-liquid doping method on the basis of previous researches. The study shows that on the basis of improving pressing and sintering process, we can obtain sub-micron porous bodies with proper porosities.

研究表明在改进压制、烧结技术的基础上，可以获得具有适当孔度的亚微米结构多孔基体，氧化钪在基体中的分布得到进一步改善，在这种基体中铝酸盐的浸渍率可以达到常规浸渍阴极的要求。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnated cathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth doped molybdenum cathode have been studied in this paper.

研究了稀土钼阴极的热发射、次级发射及亚微米结构钪钨基扩散阴极的热发射性能。

The thermionic emission properties of rare earth doped molybdenum cathode and impregnatedcathode with sub-micron scandia doped tungsten matrix, and the secondary emission property of rare earth dopedmolybdenum cathode have been studied in this paper.

稀土掺杂钼热阴极发射特性和浸渍与亚微米斯坎迪亚掺杂钨阴极基体，以及稀土掺杂二级排放特性钼阴极进行了研究，在此文件。

The impregnated cathodes with sub-micron scandia doped tungsten matrix exhibited excellent emission property. The current densities of more than 30 A/cm^2 at 850℃ b could be obtained, and the emission homogeneity was improved with the ordinary scandate cathode.

湿法冶金方法制备的亚微米结构钪钨基扩散阴极850℃时电流密度可达47A/平方公分，且阴极表面的发射均匀性较普通钪酸盐阴极有明显的改善。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。