The characteristics of the microstructure and the strength properties of aluminum matrix composites reinforced with γ Al 2O 3 long fibre, δ Al 2O 3 chopped fibre or SiC particulate by die casting infiltration technique was studied.

It points out that with the increasing requirement for high quality castings in automobile industries, this new die casting technique is being applied in production of automobile castings such as aluminium alloy hub.

随着汽车工业对高质量铸件的需求日益增加，这种新的压铸工艺正在汽车铝轮毂等铸件生产中得到应用。

Experiment and Research on Die Casting Technique of Textile Spindle Base Made of ZA-27 Alloy

ZA-27纺锭锭底压铸工艺的试验研究

Compound Die Casting Technique for Vacuum Pump Body

真空泵泵体外壳复合金属型铸造工艺

Die casting is a metal forming method with high production efficiency, high production quality and high precision.

压力铸造是一种生产效率高，产品质量高、精度高的金属成型铸造方法。

Imported copper wire clamp, made of Brass H62 by die casting.

铜螺栓接线夹，采用H62黄铜压铸制造。

CAE of Vacuum Die Casting Technology for Magnesium Shell Parts

镁合金壳体真空压铸工艺CAE

The Research of Powder Release Agent for Aluminum Alloy Vacuum Die casting

铝合金真空压铸用粉状脱模剂的研究

The Development of Vacuum Die Casting

真空压铸的发展

Study of vacuum die casting process of aluminum alloy automotive steering gear housing

铝合金汽车转向器壳体真空压铸工艺研究

Hardfacing material of maraging steel metal powder-cored wire was deposited by pulse TIG on aluminum die cast dies to improve the dies' properties and extend its service life.

采用脉冲TIG焊马氏体时效钢金属粉芯焊丝堆焊铝合金压铸模表面来提高模具表面性能。

Thus it is an efficient approach to improve die cast dies' properties by preventing segregation of phosphorus and breaking the network of carbides distributing along the grain boundaries.

因此，减轻磷的偏析、破碎沿晶界连续分布的网状碳化物是提高压铸模综合性能的有效途径。

Wavelet transform is applied to abstract of the characteristic points of CAP. A new method has been developed for detecting the start point ( u) ascending branch of CAP, and Dicrotic Notch ( DN) descent branch on CAP.

本文把小波变换应用于颈动脉波（CAP）的特征提取，为检测CAP上升支起点（U）和降支重搏波切迹（DN）提出了一种新方法。

Arterial compliance was calculated as the integrated area starting at the well-defined nadir of the incisura of the dicrotic notch to the end of diastole of the radial artery pulse wave.

计算动脉顺应性的综合领域开始，明确界定的低潮的切迹的搏切迹的结尾舒张的桡动脉脉搏波。

While in figures of right Guan pulse of spleen deficiency syndrome the main wave became small, the main wave and dicrotic notch appeared earlier, the dicrotic anterior wave descended, the dicrotic wave obviously ascended and the ce of descending branch became rapid.

脾虚证有关脉图主波变小，主波及降中峡提早出现，重搏前波降低，重搏波明显抬高，降支速率增快。

Dicrotic notch amplitude is increased compared with dominant wave, but dicrotic wave is decreased, and coefficient of variation continued rose.

对于幅值的特征值，随着嵌入式传感器位置偏置程度的增加，相对主波幅度而言，降中峡的幅值有增高趋势，而重搏波幅度则呈下降趋势，且变异系数不断增加。

But the pulse graph of femoral artery had no dicrotic front wave and so its position was low.

而股动脉脉图不具有重搏前波，且重搏波位置较低。

The result indicated change of dicrotic wave and wave's type ( P < 0.01, P < 0.05).

发现短期练禅密功后脑血流图的重搏波、波型有改变（前者P<0.01，后者P<0.05）示对血管弹性、阻力有影响。

The reversal gradient of blood pressure and the forming of dicrotic wave

血压逆向梯度与重搏波的形成

Circular dichroism spectra have been used to explain chiral molecular recognition.

同时，利用园二色光谱进一步阐述手性分子识别过程。

The secondary structure was investigated by Circular Dichroism ( CD).

利用圆二色光谱（CD）研究了共聚物在溶液中的二级结构及其影响因素。