查询词典 tungsten

Late Yanshanian, plutonic monzonite granites causes molybdenum and tungsten mineralization .

燕山晚期形成的位于区内东北部的中—深成相二长花岗岩成矿作用主要为斑岩型钨钼矿。

It fires 20 gramm (308 grains) tungsten dart with muzzle velocity of 1450 meters per second (4750 fps).

它火灾20格拉姆（308粒）钨镖（fleschette与1450（每秒4750帧米初速））。

Is a series of aids to navigation light LED lamps high-tech enterprises, which uses advanced LED series light source to replace the domestic aids to navigation lighting products are still using the traditional tungsten halogen light source or other traditional source of lighting, making China's aids to navigation lights product quality to meet international advanced level.

深圳市锐步科技有限公司是一家研发LED光源系列助航灯具的高新技术企业，它采用先进的LED系列光源取代国内助航灯光产品中仍在使用的传统卤钨光源或其他传统光源的灯具，使得我国的助航灯光产品质量达到国际先进水平。

The Cerium-Tungsten electrode is nonradioactive and multifunctional. It possesses an excellent arcing feature and the arc current is low.

钨铈电极是一种非放射性、多用途的新型电极，它具有优良的电弧特性，维弧电流较小。

This paper has mainly described the one-step technical process and equipment for producing tungsten powder having medium particle size.

本文主要介绍了中颗粒钨粉一步还原法的生产工艺及设备。

Both companies have achieved very good results in this field, but the main activities were still mining and dressing the tungsten ore.

两家公司均在这一领域获得良好收益，但其主营业务仍为矿山开采和选矿。

A re-explanation of experimental phenomenon reported in literature is derived, which shows that the reason causing the decrease of tungsten extraction when using overhigh degree of substitution of NaOH for Na2CO3 lies in the sharp decrease of the concentration, not the increasing attack of gangue constituents, which would consume Na2CO3 that otherwise would have been available to digest scheelite.

利用热力学分析所得结论，重新解释了前人的实验现象，认为以过多的NaOH代替Na2CO3造成钨浸出率回落的原因在于，溶液中浓度的较大幅度下降，而不是钨矿中脉石分解所引起的Na2CO3消耗。

So, it is very important to investigate the detailed electrical properties of tungsten oxide. In this Ph.

因此，深入系统地研究钨氧化物的电学性质，就具有重要的科学意义和应用价值。

An oxyacid of tungsten formed by neutralizing alkaline tungstate solutions.

钨的含氧酸，通过中和碱性钨酸盐溶液形成。

Associating with the research of Magness, the increase of penetration depth of forged tungsten alloy armor piercing penetrator is explained.

结合Magness的研究结果，解释了锻造态钨合金穿甲威力提高的现象。

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。