查询词典 Fe

To restore the ability of chromium can be dissolved in sulfuric acid, hydrochloric acid and High-FE acid and release hydrogen, but also of pure chromium with aqua regia does not work, when there is the presence of halogen ions in the acid can not be long-term stability, high temperature with alkali, hydrogen sulfide, sulfur steam, phosphorus, ammonia, such as carbon monoxide and water vapor reaction of the corresponding compounds, in the high temperature reaction of silicon into the silicide also chromium, chromium alloys with many metals generate a wide range of industrial applications, such as chromium-manganese stainless steel is used extensively for chemical plants.

铬的还原能力强，能溶于硫酸、盐酸和高FE氯酸而放出氢气，但纯铬连王水也不起作用，当有卤素离子存在时，在酸中不能长期稳定，高温时能与强碱、硫化氢、硫蒸汽、磷、氨、一氧化碳和水蒸汽等反应生成对应的化合物，在高温下还能与硅反应成硅化铬，铬能与许多金属生成合金广泛在工业上应用，如铬锰不锈钢大量用于化工设备。

To our knowledge, it is the first example of cubic Fe nanostructure prepared in aqueous solution.

这是首次在水溶液体系中得到立方形Fe纳米粒子的例子。

The room-temperature resistivity ρ〓 of a fully nanocrystallized 〓 sample increases obviously, which can be associated with the low atomic density, the high degree of disorder and the depletion of Fe atom.

充分纳米晶化的〓纳米晶试样的室温电阻率ρ〓的明显增加与界面相的低原子密度、高度无序和Fe原子的相对减少密切相关。

Table 4 Lattice structure, atomic radii, electronic configurations, electronegativities andpositron bulk lifetimes of Fe, Cr, Mo and Al lattices

为便于讨论合金元素对Fe3Al合金缺陷组态和电子密度的影响，我们把Fe、Cr、Mo和Al的电子构型、晶体结构、原子半径、电负性[10]及正电子在其金属基体中的寿命值[11，12]列于表4。

In this thesis, the dynamic processes of boron segregating to grain boundaries during cooling in Fe-40%Ni alloy are first studied by boron autoradiography technique and transmission electron microscopy.

本文首先应用硼径迹显微技术和透射电镜观察了Fe-40%Ni合金在连续冷却过程中硼向晶界非平衡偏聚的发展过程。

Stainless steel 35-42 °Be FeCl 3 35-55 Mild steel 35-42 °Be FeCl 3 35-55 Beryllium copper 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Copper and copper 30-42 °Be FeCl 3 or 40-55 alloys ammoniacal copper or 33 °Be acidic CuCl 2 Inconel and other 38-42 °Be FeCl 3 or 45-55 high nickel alloys conc nitric/conc hydrochloric acid/water 1:1:3 Aluminium 20% NaOH 60-90 or conc hydrochloric 20-65 acid/water 1:4 55 or alkaline potassium ferricyanide Brass 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Molybdenum Alkaline potassium 55 ferricyanide 40-55 or 40 °Be Fe(NO 3 ) 3 Titanium 10-50% HF 30-50 (optionally with HNO 3 )*The concentration of etchant (column 2) is measured in Degrees Baume where:°Be = 145 (SG - 1/SG); and SG is the specific gravity of the solution.

表美- 00002表2金属共同腐蚀剂*温度° C的不锈钢35-42 °成为氯化铁三 35-55低碳钢35-42 °成为氯化铁三 35-55铍铜30-42 °成为氯化铁3或40-55氨铜或33 °是酸性CuCl的2铜及铜30-42 °成为氯化铁三或40-55合金氨铜或33 °是酸性CuCl的2镍铬铁合金和其他38-42 °成为三氯化铁3或45-55高镍合金浓硝酸/浓盐酸/水1时01分03秒铝20％的NaOH浓盐酸60-90或20-65酸/水1：4 55或氰化钾铜30-42 °碱性钾成为三氯化铁3或40-55氨铜或33 °是酸性CuCl的二钾55钼碱性铁氰化钾40-55或40 °成为铁Fe（NO 3）3钛10-50％的HF 30-50*的浓度对侵蚀剂（栏2）测量波美度其中：°成为= 145（法兴- 1/SG）；和SG是比重。

The results show that the covalent electron number and bond energy in structure cells can be improved by adding proper alloy elements and carbon in α-Fe matrix, thus the matrix can be strengthened.

结果表明，在α-Fe基体中加入适量的合金元素和C，可提高结构单元的共价电子数n和键能E，强化了基体。

The activity of each component inAl-Si-Fe alloy at various temperatures was calculated using the data measured byboth Bonnier method and this study.

用Bonnier法和本实验所测定的数据计算了Al-Si-Fe合金在不同温度下各组元的活度。

A Fe-3C-30Cr eutectic in-situ structure composite was experimentaly prepared by using Bridgeman unidirectional solidification technique.

试验用Bridgeman走向凝固技术制取了Fe－3C－30Cr共晶自生结构复合材料。

The story of the 1995 merger of Burlington Northern and Santa Fe Railroads offers a case in point.

Burlington 的 1995 合并的故事北方人和圣 Fe 铁路对于点提供一个情形。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。