硅

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。

The results of the correlations of composition, function and performances will lay a solid foundation for the fabrication of new model hypereutectic Al-Si alloy, provide evidences for theory and show the direction for industry development.

揭示了过共晶铝硅合金(Si≥20％)的成分、组织和性能之间的内在关系，为研制新型的过共晶铝硅合金提供理论依据和工业应用方向。

In order to analyze the effect of structure of hypereutectic Al-Si alloy on its machinability, the cutting test to two hypereutectic Al-Si alloys which have the same chemical composition but different structures is made and their cutting mechanism is studied.

为分析过共晶铝硅合金组织对其切削加工性能的影响，对两种化学成分相同但是组织结构不同的过共晶铝硅合金进行了切削试验研究并探讨了其切削机理。

This paper presents the regular pattern of protection effect of concrete coated with different type and different concentration of silicane impregnant.

本文针对具体工程，系统进行不同品种硅烷浸渍剂、不同硅烷浓度对混凝土保护性能的影响规律。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; a selectivity control agent comprising at least one silicon containing compound containing at least one C1-10 alkoxy group bonded to a silicon atom, and one or more activity limiting agent compounds comprising one or more aliphatic or cycloaliphatic carboxylic acids; alkyl-, cycloalkyl- or alkyl-ester derivatives thereof; or inertly substituted derivatives of the foregoing.

一种用于丙烯聚合的催化剂组合物，所述催化剂组合物包括：一种或多种齐格勒-纳塔主催化剂组合物，该主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体；一种或多种包含铝的助催化剂；选择性控制剂，该选择性控制剂包括至少一种包含硅的化合物，该化合物包括至少一种与硅原子连接的C 1-10 烷氧基；和一种或多种活性限制剂化合物，该活性限制剂包括一种或多种脂族或脂环族的单或聚羧酸类、其烷基-、环烷基-或烷基-衍生物、或上述惰性取代的衍生物。

Caution: Silicone should not be used with highly oxidizing agents such as oxygen, chlorine, nitric acid or hydrogen peroxide, because of danger of spontaneous chemical reaction, inflammability or explosion.

选用硅油时，请充分考虑使用场所及介质没有与硅油发生强烈反映的危险。

The study of acceptor Ga open-tube diffusion in SiO2/Si has been carried for several decades, whose pursuing was only to get the diffused surface of high uniformity and reproducibility and impurity distribution in Si which can improvethe electrical performance of the devices, but the various manifestation of Ga segregation effect at the SiO2-Si internal interface and the dynamic intendancy of the impurity concentration variability have not been reported.

关于受主杂质Ga在SiO_2／Si系统进行开管掺杂的研究已有几十年的历史，研究的内容与追求的目标主要集中在如何获得高均匀性、重复性的扩散表面和提高器件电学性能的硅体内杂质分布形式，而对Ga在SiO_2-Si内界面上分凝效应的各种表现，以及由此造成的近硅表面杂质浓度动态变化趋势尚未见报导。

In the present embodiment, the interelectrode insulating film 8 is formed of a silicon oxide film or a silicon nitride film having a thickness of 400 nm or below.

在本方式中，电极间绝缘膜8，由膜厚度为400nm以下的氧化硅膜或者氮化硅膜构成。

When the minority carrier life of PS decreases, the irradiative centers on surface of PS increase, which lead to decreasing of photoluminescence efficiency.

另外，原子力显微照片表明长时间的腐蚀使多孔硅表面层被化学腐蚀，从而降低了多孔硅表面的粗糙度。

The novel chemistry is described for the isomorphous substitution of amorphous or framework silicon atoms in zeolite itself for aluminum atom in the framework of zeolite.

我们发现在适当的反应条件下，骨架铝的脱出与外界硅原子的取代几乎同时进行，避免了分子筛晶体结构破坏，得到富硅骨架八面沸石分子筛。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。