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The hypereutectic Al-Si alloy produced by electro-thermal methods was modified with P and RE, then the microstructure and mechanical properties of alloy were analyzed.

中文摘要：对电热法生产铝硅合金配制的Al-20Si合金进行了P-RE复合变质处理，对变质后的微观组织和力学性能进行了分析。

The value of hypereutectic Al-Si alloys is their fine pri-mary silicon particles.

而使高硅铝合金充分发挥实用价值的关键是细化初晶硅。

Hypereutectic Al-Si alloy with the quality of low density, good heat stability and high wear-resistance, is an ideal wear-resistant and heat-resistant material.

中文摘要过共晶铝硅合金具有低密度、良好的热稳定性和高耐磨性，是一种理想的耐磨耐热材料。

Thixoforming properties of spray formed high silicon hypereutectic Al Si alloys were studied.

研究了喷射沉积高硅铝合金在半固态触变成形过程中的规律。

The characteristic of this essay is that we systematically analyzed the preparation of hypereutectic Al-Si alloy with electromagnetic stirring. The results will be applied to fields as structure material with high abrasive wear and tear, which will boost the economics and its development.

在国内属于开创性研究，研究成果将应用于结构材料、高耐磨材料等生产领域，对材料工业、汽车和摩托车从业的发展具有重大的经济意义和推动作用。

Taking black corundum particals as ceramics component, hypereutectoid steel as matrix metal, and Si-Fe as alloy, the crucibles of composites made of three layer components were obtained.

采用黑刚玉为陶瓷，过共析钢为基体金属，硅铁为合金构成三层复合材料坩埚。

Furthermore, the β angle is very close to 108° of the pentagons in the (010) plane of the Cr3 icosahedron.

首次在Al-Cr-Si三元合金系中发现了周期为1.24nm和3.72nm的两种稳定十次准晶。

If you can not get 1:00 experience in the Si roaring cry of Linkin Park, don't not please to want doubt you of music impressibility.

如果你在Linkin Park的嘶吼声中得不到一点体验，请不不要怀疑你的音乐感受性。

No one is more impressive than my neighbor, A Si, in my life.

在我的人生中给我最难忘的人是我的邻居阿四。

I make a demonstration in theory for comparative security of information system with Si...

通过分析研究信息安全的基本要素，引入了Parker的信息安全新构架。

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。