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This paper adopts a nonparametric frontier method and the measure define by Ferrier et al.

本文利用非参数边界法，以及Ferrier et al。

Nonstable growth of Al-Si eutectic in constrained condition has beeninvestigated by means of change of the pulling velocity in an unidirectional solidi-fication system.

本文在定向凝固系统上用变速抽拉方法试验研究了Al-Si共晶强制非稳态生长过程。

In this new algorithm, 2-D X-ray images are collected for Ca, Si, Al, Fe, S, K, Mg, and grey-level value of the same point in these images are normalized and arranged as a vector in a particular order. In this paper, the vector is named as character vector, for it can be used to characterize each point in cement pastes 2-D image.

新算法采集水泥截面上Ca、Si、Al、Fe、S、K、Mg的二维X-射线图像，将这些图像同一点处的灰度值正规化并按一定的顺序排列后写成向量的形式，称为该点的特征向量。

PROSECUTOR PROTEST \ 抗议检察官 Supporters of Sudan's President Omar Hassan al-Bashir held posters crossing out the face of International Criminal Court prosecutor Luis Moreno Ocampo Tuesday near Khartoum, Sudan.

国际刑事法庭打算以战争罪逮捕苏丹总统巴希尔(Omar Hassan al-Bashir)。巴希尔的支持者周二在苏丹喀土穆附近举行示威，手中举着印有国际刑事法庭检察官奥坎波头像的海报，并划上大叉。

Domain structures in Mn-Si-Al octagonal quasicrystals have been studied by high resolution electron microscopy and image processing.

用高分辨电子显微术和图象处理研究了Mn-Si-Al八次准晶中的畴结构。

The optimal operating conditions were as follows: concentration of polyaluminum chloride was between 50 and 60 mg/L as Al, the concentration of sodium oleate was between 5 and 10 mg/L, the pH values of the wastewater was between 4 and 5, the hydrolic retention time was 1 hour and the recycle ratio was between 10 and 20%.

此外，在考量成本与水质下，以多元氯化铝浓度 50 ~ 60 mg/L as Al，pH 调整至 4 ~ 5，捕集剂浓度为 5 ~ 10 mg/L，水力停留时间为 1 小时，回流比为 10 ~ 20%为最适之操作条件范围。

Ni-Al thermal spray coating ; reactive Sintering ; microstructure evolution ; B onding mechanism

Ni-Al喷涂层；反应烧结；组织演变；结合机制

On the basis of orthogonal experiment, the effect of Mg content and heat treatment on mechanical properties of near eutectic Al Si cast alloys modified with Sr has been investigated.

以正交试验为基础，通过调整Mg含量和热处理工艺，分析它们对Sr变质近共晶Al Si 铸造合金力学性能的影响。

Analyzed the pertinency about the grain structure of alloy Al-4wt% Cu between the pulse current, voltage, capacitance charged frequency, circuit oscillatory frequency.

分析了Al-4wt%Cu合金组织的晶粒尺寸和脉冲电流、电压、冲击频率以及电路自振荡频率之间的相关性。

The results of experiment show after inputting impulse current to alloy Al-4wt%Cu, its grain structure can be refined from 1.5 mm to 0.2 mm at impulse voltage 2 kV, capacitance charged frequency 0.5 Hz and circuit oscillatory frequency 50 Hz.

结果表明：脉冲电压2kV、电容的冲击频率为0.5Hz、电路的振荡频率为50Hz时，脉冲电流对Al-4wt%Cu合金作用后，晶粒尺寸由1.5mm减小到0.2mm。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。