硅元素

Features: 1 to the Al-Si eutectic alloy composite added a variety of heat-trace elements and, through orthogonal experimental design and optimize the use of rare earth elements - Modification of phosphorus and salt air brick bottom melting technology, access to the ideal Detroit microstructure - in high intensity, good plastic α-Al matrix on the distribution of the large size of coarse crystal silicon and Chinese characters or fish-bone-shaped iron phase, raising the Pistons at room temperature plastic and high temperature strength, lower raw material costs.

通过向共晶铝硅合金中复合添加多种微量热强元素，并通过正交试验优化成分设计以及采用稀土－磷盐复合变质处理和炉底透气砖熔炼技术，获取理想的活塞金相组织——在强度高、塑性良好的α-Al基体上分布尺寸较粗大的共晶硅和汉字状或鱼骨状铁相，提高活塞室温塑性和高温强度，降低原材料成本。

Two ferrocenyl and trimethylsilyl substituted cyanohydrin ethers have been prepared by the addition of trimethysilyl cyanide to two acetyl-substituted ferrocenes: 1-(1-cyano-1-trimethylsilyloxyethyl)-ferrocene (1) and 1, 1'-bis(l-cyano-1-trimethylsilyloxyethyl)ferrocene (2). The structures of these two compounds were characterized by elemental analysis, IR, 1H NMR and X-ray crystallography.

通过两种取代的乙酰基二茂铁与三甲基氰硅烷的加成反应，得到两种取代二茂铁基三甲基硅烷基氰醇醚的晶体：1-（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(1)，1，1-二（1-氰基－1-三甲基硅烷氧基乙烷基）二茂铁(2)，用X射线单晶衍射、元素分析、红外光谱和核磁共振氢谱对分子结构进行了表征。

The checking-out range of silicon and phosphorus is settled through measuring trace silicon and phosphorus in ferromanganese with ICP-AES.

利用ICP-AES测定锰铁中微量硅和磷的方法，确定了硅和磷元素的检出限。

In order to recovering remained vanadium from high vanadium ferrovanadium bearing high A12O3 with electric -silicothermic process, transforming slag conposition with adjusting material in furnace charge can recover vanadium economically and can produce self-willed ferrovanadium bearing high silicon and low vanadiu

利用电硅热法提取含高Al_2O_3成分的高钒铁炉渣中残钒，在炉料中配入调渣物料改造渣型后，能较经济地提取出钒元素，生产自用高硅低钒铁。

It was found that the section was brittle. The scales of the pangolin were composed of the very thin prismy construction units and the folded units. The scales of the pangolin included such trace elements as S,Si,Fe,Al and Ca, besides the element of C,H,O and N. There were small amount of P element in the internal layer of the pangolin's scale.

结果表明冲击断口为脆性断口；穿山甲鳞片是由极细的棱柱结构单元和叠片结构单元混合形成的；穿山甲鳞片除含有大量的碳、氢、氧及氮元素外，硫、硅、铁、铝、钙5种元素的含量也相对较高，鳞片内层中含有少量的磷元素。

A quantity of raw materials (soda lime, silica sand, calcium, oxide, soda and magnesium) properly we

这些原材料包括苏打灰，硅砂，钙元素，氧元素，苏打和镁元素。

The silicon battery is the main power equipment of satellite and airship, and on the ground, it is use as especial electrical source coordinating with storage cell.

硅太阳电池是用地球上富有的元素硅制造的，其工艺比一般晶体管的制造工艺简单。硅太阳电池能

Two important routes currently being used to improve molybdenum disilicide mechanical property and oxidation are the alloying approach and the doping approach.

介绍了二硅化钼合金化及掺杂改性的研究进展，对几种重要合金化元素和掺杂元素改性的二硅化钼材料进行了评述，并在此基础上提出了高性能二硅化钼材料研究开发的重点和方向。

The diffusions of ions of titanium, aluminium and silicon were discovered in the interface area.

能谱分析发现界面区有钛、铝、硅元素扩散现象。

The base of trichomes consisted of large quantity of cells..

表皮毛可检测到微量的硅元素分布。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。