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。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。