查询词典 tungsten

The mineral resources which are proved to be worthy of exploitation include antimony, plumbum, iron, zincum, magnesium, tungsten, molybdenum, bismuth, cuprum, cobalt, nickel, cadmium, thallium and argentums.

现已探明具有开采价值的矿藏有锑、铅、铁、锌、镁、钨、钼、铋、铜、钴、镍、镉、铊、银等金属和稀有金属矿，还有石墨、硅石、滑石、石英、石膏、花岗岩、耐火粘土等非金属矿。

The power of its electronic transgression is 2.7ev, 40% less than that of pure tungsten electrode. With a low arc derivation voltage. It's easy to cause arc of high stability. Its current capacity is elevated 30% while its rate of burn spoilage drops low, making it more durable.

电子逸出功约2.7ev，比纯钨低40%，引弧电压低，易起弧，电弧稳定，载流能力提高30%，烧损率低，寿命延长。

This system works well and accommodates a wide range of tungsten sizes, especially smaller ones.

这一制度运作良好，并容纳了广泛的钨大小，特别细。

This flat land helps prevent the tungsten from being transferred across the arc and/or from balling.

这平地利于防范被移送各地钨弧和/或来自球。

Used in various types of aircraft Brand winding machine needle Ruby guided needle and charring two tungsten needle.

使用于各类品牌机种绕线机的导针红宝石导针和炭化钨导针 2。

The thickness of the alloying layer is 80μm in the decarbonizing and then surface alloying, but only 15μm in the surface alloying directly. The content of cobalt which doesn't form carbide doesn't have a great difference in two processes, but that of tungsten and molybdenum make a great difference.

在两种渗金属条件下，表面合金层的非碳化物形成元素Co含量差别不是很大，而强碳化物形成元素W和Mo的含量却有着显著差异，直接渗金属的，表层W和Mo含量几乎为零，而脱碳后渗金属的，表层W和Mo总量最大达到6%左右。

The present invention is characterized in that the ammonium metatungstate powders and the cobltic-nitrate powders are respectively dissolved in the water and scattered in the liquid nitrogen to be pre-frozen using a nitrogen spray gun after being mixed and defecated, and then are placed in a freezedryer to be dried vacuumly and finally the powders are obtained. The nanometer powder i.e. the nano tungsten-cobalt composite powder is obtained by reducing the freeze-dried mixed powder in the atmosphere of hydrogen.

该微晶硬质合金的制备方法特征为：将偏钨酸铵粉末与硝酸高钴粉末分别溶于水中，混合澄清后使用氮气喷枪，将其分散在液氮中预冻后置于冻干机中进行真空干燥得到粉末；在氢气气氛中对冻干的混合粉末进行还原得到纳米粉体，即钨钴纳米复合粉体。

These consumables generally resist twisting or elongating and hold the tungsten more securely after extended periods of use.

这些一般消耗品抵制篡改或伸长，站稳钨长时间使用后更稳妥。

These floodlights are designed for tungsten halogen lamps.

灯具中采用的光源素卤钨灯。

The Flex-Hone tool is available in a variety of abrasive types including Silicon Carbide, Aluminum Oxide, Boron Carbide,Tungsten Carbide, Levigated Alumina and Zirconia Alumina.

球头刷的研磨粉可提供各种材料，包括：碳化硅、氧化铝、碳化硼、碳化钨、氧化铝、氧化锆。

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。