查询词典 Al

0At% nanocrystalline alloys the Al〓Fe〓Mm and Al〓Fe〓Mm nanoscale particles appear in as-received state and the phase transformation dynamics of Al〓Fe〓Mm to α-Al〓〓Si was controlled by atomic lattice diffusion mechanism in high-temperature state.

指出：急冷态快凝Al-Fe-V-Si合金中Fe原子存在α-Al、α-Al替代固溶体及弥散α-Al〓〓Si金属间化合物三种组态；高温热曝露态Fe原子组态类型和相对含量有所变化。

In this dissertation, Al-Cu-Mn ternary alloy ultrafine powders with 99% relative content of AlCu〓Mn compound phase were prepared. But only binary compound phases of Al-Cu and Al-Cr systems formed in the Al-Cu-Cr ternary alloy ultrafine powders, without any ternary compound phase.

本研究在蒸发Al-Cu-Mn合金时，制得了AlCu〓Mn相对含量达到99％的合金超微粉末；在蒸发Al-Cu-Cr合金时，制备的超微粉末中只生成了Al-Cr和Al-Cu二元化合物相，无Al-Cu-Cr三元化合物合金相生成。

The other seats were taken by: Nasser al-Qudwa, Mr Arafat's nephew and a former PLO ambassador to the UN; Saeb Erekat, a PLO negotiator with Israel; Mohammed Shtiyyeh, the PA housing minister; Hussein al-Sheikh, the Fatah secretary-general; Othman al-Gharbiyeh, the congress chairman; and Mohammed al-Madani, the governor of Bethlehem.

其他的席位被阿拉法特的侄子、前巴解组织驻联合国大使，Nasser al-Qudwa，和以色列谈判的巴解组织的谈判专家Saeb Erekat，以色列建设部长Mohammed Shtiyyeh，法塔赫秘书长Hussein al-Sheikh，大会主席Othman al-Gharbiyeh和伯利恒的长官Mohammed al-Madani。

Under such a solidification condition that the growth rate is low and the temperature gradient ahead of the solidi fication front is steep, a large amount of α-Al nuclei can be produced by peritectic reaction, during which only metastable Al〓Zr particles or very fine equilibrium Al〓Zr particles rather than larger equilibrium Al〓Zr partiles are involved.

在低的生长速度和高的界面前沿温度梯度条件下，结晶前沿Al〓Zr粒子与液态铝发生包晶反应（只涉及亚稳Al〓Zr或尺寸极小的平衡Al〓Zr，而不涉及尺寸较大的平衡Al〓Zr）产生大量α晶胚，α晶胚呈球面生长，最终形成等轴非枝晶形态。

Al〓O〓-TiC and Al〓O〓-TiB〓 ceramic composites were synthesized using TiO〓, Al and graphite and TiO〓, Al, and amorphous B〓O〓 powders via aluminothermic reactions, respectively.

采用TiO〓、Al和石墨原料合成了Al〓O〓-TiC复相陶瓷，研究了压坯压力、试样直径、原料中铝粉和石墨颗粒、TiO〓的晶型、过量铝和Al〓O〓稀释剂等对燃烧合成过程及产物微观结构的影响。

A"subgrain Al layer"was usually observed at the Al side of a SiC/Al interface containing no"interface Si"; the layer was less than 1μm thick and a few degrees crystallographically misoriented form the Al matrix, with high density of dislocation generated in it.

在那些没有&界面Si&的真正的SiC/Al界面处靠Al一侧，普遍地形成一层厚度不到1μm的&亚晶铝带&，它紧靠SiC表面形成，与远离SiC的Al基体有几度的位向差。

By using nucleation theory, the undercoolings at which the primary crystal of Al-4. 5%Cu alloy nucleates on γAl〓O〓 and α-Al〓O〓 are determined to be 59～83℃ and 23～33℃ respectively, This theoretical result agrees with our experiments.

发现工业大体积Al-4.5％Cu合金的最大过冷度受其在Al〓O〓上形核过冷度的限制，并用形核理论估算出Al-4.5％Cu合金液在γ-Al〓O〓和α-Al〓O〓上的形核过冷度分别为59～83℃和23～33℃。

Al-Ti, Al-Fe, Al-SiCp(130nm), Al-SiCp(14 m) composites are performed with cold-press sintering plus hot extrusion powder metallurgy technique in this article, microstructure, hardness, extensibility behavior and traction-wear behavior are studied ,some innovative outcome is got.

本文采用&冷压烧结+热挤压&的粉末冶金方法制备出Al-Ti、Al-Fe、Al-SiCp(130nm)、Al-SiCp(14μm)复合材料，研究了显微组织、致密度、硬度、抗拉行为以及耐磨行为，取得了一些创新成果。

The covalency for each bond obeys the following order:La-O＜Al(5)-O＜Al(1)-O＜Al(4)-O＜Al(2)-O＜Al(3)-O＜M-O.

晶体中各格位共价次序为：La-O＜Al(5)-O＜Al(1)-O＜Al(4)-O＜Al(2)-O＜Al(3)-O＜M-O。

The results show that, the coefficients of welded joints are both greater than 0.9, but the yield strength of weld joint filled with Al-Mg-Zr-Sc welding wire is greater 100 MPa than that of filled with Al-Mg-Zr welding wire. It indicates that the Al-Mg-Zr-Sc welding wire is the best alteration of filling materials to weld of Al-Mg-Sc alloy.

但采用Al-Mg-Zr-Sc合金焊丝为填充材料时，焊缝晶粒组织明显细化，熔合区形成的细小等轴晶层提高了基材与焊缝填充材料的结合力，焊接接头的屈服强度比采用Al-Mg-Zr合金焊丝为填充材料时提高了100 MPa，显著提高了Al-Mg-Sc合金焊接构件的许用强度，因此焊接Al-Mg-Sc板材更宜采用Al-Mg-Sc-Zr焊丝。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。