查询词典 tungsten

The large tantalum niobium tungsten ore pertains to the fine-grained granite deposit of albite muscovite. The useful minerals mainly consist of wolframite and scheelite, and a small number of tantalum niobite, fine spar, tantalum aeschynite, beryl, and bismuth, etc.

该大型钽铌钨矿为细粒钠长石化白云母花岗岩矿床，主要有用矿物为黑钨矿、白钨矿及少量的钽铌铁矿、细晶石、钽易解石、绿柱石和辉铋矿等。

Choosing heteropolyacid tungsten phosphoric acid as catalyst, single and double octyl phosphate was synthesized with phosphoric acid and iso-octanol.

以磷酸和异辛醇为原料、以杂多酸钨磷酸为催化剂合成了磷酸单、双辛酯。

Panton B.E..Contraction of the welding arc caused by the flux in tungsten-electrode argon-arc welding. The Paton Welding Journal,2000,(1):pp5～11

在碳钢A-TIG焊中，使焊接熔深增加的主要原因有电弧收缩和表面张力梯度两个方面，起主要作用的是电弧收缩。

Tungsten trioxide powder has been prepared from ammonium paratungstate v/a hydrothermal method using orthogonal and mono-level design of experiments.

以仲钨酸铵为原料，通过正交设计和单水平实验，采用水热法处理制备了WO3粉体。

Quail, also known as red tungsten, red-faced quail, quail in ancient times known birds, Wan quail, Ben quail, is a Ukrainian gang, Phasianidae animals.

鹌鹑，又名赤钨、红面鹌鹑，古称鹑鸟、宛鹑、奔鹑，属乌纲，雉科动物。

Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst, and the electronegativity of Mo-O is smaller than that of W-O.

最后，根据杂多酸的结构和相应的物理化学性质，对杂多酸与铂基催化电极电催化氧化甲醇的机理进行了初步探讨。

As far as Gold Platted Tungsten sheet wire – we offer US$ 1000 for 300 meters of the diameter size which I have mentioned in my email.

Gold Platted 钨线：我们要价300米1000美圆。我已经在电子邮件里和你说了。

The infiltration parameters of CuW pseudobinary alloy were studied through theoretic deduction and experimental study. A formula was given out to show the relationship among infiltration time and tungsten powder size, pore fraction and CuW compact height.

摘 要：通过对CuW假两相合金的熔渗参数的理论分析和实验研究，给出了熔渗时间与钨粉粒径、压坯孔隙率、压坯高度之间的定量关系式。

For airbridge fabrication, tungsten nitride was chosen as the diffusion barrier for copper-airbridged pseudomorphic high electron mobility transistor due to its compatibility with the conventional airbridge process.

在本实验中，空气桥制作上使用氮化钨作为铜导线高电子迁移率电晶体之扩散障碍层，这是由於氮化钨和传统制程上有高度的相容性。

C/C composites ; Tungsten ; X-ray ; Radiopacity treatment

炭/炭复合材料；金属钨； X射线；可视化处理

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。