查询词典 tungstate

Lead tungstate is the crystal approved as the new generation scintillator in CMS experi...

钨酸铅晶体是欧洲核子研究中心确定为CMS工程所用的探测器晶体材料。

The IR spectra indicated that the functional group—COO〓 in PASP linked to the surface of carbon steel. The pitting corrosion inhibition of tungstate and BTA on carbon steel and the passivation of carbon steel in solutions containing sodium borate were studied by the measurement of polarization curves and the curves of current vs.

失重法研究钨酸钠与聚天冬氨酸对碳钢的协同缓蚀效应发现，钨酸钠与PASP对自来水中的碳钢有协同缓蚀作用，加入锌离子可产生进一步的协同作用，碳钢表面分析表明：聚天冬氨酸是以羧基在碳钢表面成键。

Methane ; Oxidative coupling ; Sodium tungstate ; Manganese oxide ; Supported catalyst ; Redox mechanism

甲烷；氧化偶联；钨酸钠；氧化锰；负载型催化剂；氧化还原机理

The anode catalyst for direct methanol fuel cell is Pt-W-Sn/C, and it is prepared through dispersing carbon black in distilled water, adding H2PtCl6, tungstate and stannate, stirring to make the metal salt and H2PtCl6 adsorbed fully; dropping reductant to reduce and deposite until complete reaction; washing with distilled water, filtering and drying to obtain black C carried sanitary Pt-W-Sn catalyst. The catalyst has excellent methanol catalyzing activity and low cost, and its use can lower the cost of direct methanol fuel cell greatly and raise the performance/cost ratio of the cell.

一种直接甲醇燃料电池阳极催化剂是Pt-W-Sn/C；其制备方法是将碳黑分散在蒸馏水中，然后加入H2PtCl6、钨酸盐和锡盐，搅拌使得金属盐与H2PtCl6被充分吸附；逐滴加入还原剂使之还原沉积，待反应完全后，用蒸馏水洗涤，过滤，然后于干燥箱中干燥，便得到黑色的C负载Pt-W-Sn三元催化剂；该催化剂具有很好的甲醇催化活性，价格低廉，可以大大降低直接甲醇燃料电池的成本，提高电池的性能价格比和市场竞争能力。

The results show that the existence of tungstate has great restraint action on cathodic hydrogen evolution.

结果表明，钨酸盐的存在对阴极析氢过程具有明显的阻化作用。

Principle of removing molybdenum from producing calcium tungstate process is set forth,concrete operation technology is presented.

阐述了生产钨酸钙过程中除钼的原理，并提出了具体的操作工艺。

The film formed during the first stage was different from that formed either in phosphoric acid or sodium tungstate electrolyte.

第一阶段形成的氧化膜与在单独的磷酸或钨酸钠体系中形成的氧化膜有所不同。

In comparison with dendritic silver growth 1, the experimental results show that the growth of silver is leading and can not be changed essentially by tungstate ions in Ag-W binary system.

通过与树枝Ag生长 [1]的比较，实验表明在Ag-W二元体系中Ag的生长为主导，而且不受钨酸根离子大的影响。

Carefully selected and controlled calcium tungstate phosphor ensures low noise, minimum persistence and maximum image quality.

精心挑选和控制钨酸钙荧光粉确保低噪声，最小持久性和最高的图像质量。

ABSTRACT The goal of this dissertation is to explore and study new synthetic methods for controlling the morphology of the obtained oxides, tungstate and halide hydroxide.

本论文旨在探索和研究能够对所合成的氧化物、钨酸盐和碱式卤化物的形貌进行控制的新方法。

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。