硅铁

In addition, the FeO bond length in this tetrahedral coordinated iron silicate structure decreases during the crystallization process.

进一步的研究发现，随着晶化的完全，这种铁-硅氧结构中铁-氧配键键长在慢慢变短。

According to IS theory as well as die bond requirement in reality, Au/In was chosen by virtue of appropriate equilibrium diagram and high reaction rate from a variety of binary alloy systems as die bond media. To match CET of chip material of silicon, alloy 42 (Iron-Nickel) rather than copper—2 kinds of lead-frame materials in most common usage, was selected as substrate.

根据等温凝固原理和芯片焊接的实际需要，从多组二元合金中选出了共熔点低、反应速度快的金和铟作为焊接材料；并以硅片作为芯片，从目前最常用的框架材料—铜和铁镍四十二合金中，选出了与硅的热膨胀系数相近的铁镍四十二合金作为衬底材料。

Mechel supplies coking and steam coal concentrates produced by its Yakutugol subsidiary as well as ferrosilicon and ferrochrome to Japan.

Mechel 的雅库图戈尔分公司主要生产炼焦和锅炉用煤，同时为日本提供铁硅和铁铬。

Su steel smelting has two advantages:(1) During the pouring process there is strong oxidation which results in separation of slag and iron the wrought iron being soft in structure and containing large amounts of oxide impurities and also silicon manganese and carbon.

苏钢冶炼高明的地方主要有二点：一是料铁组织疏松，含有大量的氧化夹杂，硅、锰、碳含量也比较高，炼的时候氧化剧烈，造成一定的渣、铁分离。

The results showed that the amounts of base cations leached from calcareous soils and coastal solonchak were lower than the cation exchange capacity and the releasing amounts of Al3+ being lower than 0.40mmol·kg-1 all the way under the treatment of simulated acid rain with each pH value from 2.5 to 5.6,so the H+ buffering...

结果表明，石灰土和滨海盐土的阳离子淋溶量低于阳离子交换量，土壤主要处于阳离子交换缓冲范围和碳酸盐-硅酸盐缓冲范围，Al释放量一般低于0.40mmol·kg~(-1)，铁铝土纲系列土壤在阳离子释放总量超过阳离子交换量后，淋溶液pH值急剧下降，此时Al淋溶量明显增加，质子缓冲转向Al缓冲范围，其释放量决定于土壤富铁铝化程度的高低和活性Al含量的多少，紫色土在低pH模拟酸雨淋溶下，由于含大量硅铝率较高的易风化原生或次生矿物，盐基释放量高于CEC，但Al释放量未明显增加，淋溶液pH也较稳定，土壤尚处于矿物风化为主的硅酸盐缓冲范围。

The removal of silica to produce pure iron concentrates is a dominant way for iron-ore dressing at present. In order to solve the problems, such as bad selectivity, sticky bubbles, weak collectability at low temperature by using fatty amines to fulfil the reverse flotation of iron ore in a iron Mine in AnShan.

提铁降硅生产高纯铁精矿是当今铁矿选矿的主导发展方向，为解决鞍钢某铁矿使用常规脂肪胺类阳离子反浮选工艺存在的选择性较差、浮选泡沫粘度大，以及矿浆需要加温等实际问题，本文围绕开发或寻找新型高效阳离子反浮选药剂进行了系统的试验研究。

The preferred organometallic compounds of the present invention are of the formula (R1)m M(PR23)x, where M is a metal selected from the group consisting of manganese, technetium, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium iridium and platinum wherein m is 0, 1, 2, 3 or 4; x is 2, 3, 4 or 5 and m+x are 2, 3, 4, 5, 6, 7 or 8, m and x selected according to each metals appropriate valence; each R1 is independently selected from the group consisting of hydrogen, deuterium, N2, H2, D2 and a variety of substituted alkyl groups; each R2 is independently selected from the group consisting of lower alkyl, aryl, arylalkyl, and alkyl-Z, aryl-Z and arylalkyl-Z where Z is selected from the group consisting of oxy, silyl, siloxy, oxysilyl, siloxy, oxysiloxy, silyalkyl, oxysilylalkyl, siloxyalkyl, oxysiloxyalkyl, silylalkoxy, silylalkoxy, siloxyalkoxy and oxysiloxyalkoxy; and wherein when M is cobalt and one group R1 is selected to be N2, then m is 2 and the second group R1 is hydrogen or deuterium.

有机化合物的首选本发明的配方是米(R1代)米×(pr23)、那里是一米的金属挑选出来，第一组由锰、锝、铼、铁、钴、镍、钌、铑、钯、锇、铱铂其中M是0、1、2、3或4； X是2，3， 4或5米×+有2，3，4，5，6，7或8 米和X挑选合适的价按每个金属； R1的是每一组由独立选自氢、氘、氮、氢气、 D2和各种烷基取代群体； R2中的每个组由独立选自烷基低、芳、芳基烷基、烷基的Z、芳基、芳基烷基的Z-那里的ZZ是选自组风、含硅、氧、oxysilyl、硅、oxysiloxy，silyalkyl， oxysilylalkyl，siloxyalkyl，oxysiloxyalkyl，silylalkoxy，silylalkoxy，siloxyalkoxy和oxysiloxyalkoxy；其中，M是当钴一派R1的选择是氮气、然后是2米，第二组R1的氘是氢或者。

Here we synthesize mesoporous titanosilicate MTS-9 and ferrisilicate MFS-9 by using zeolite TS-1 and FeS-1 seed solution as inorganic precursor respectively and triblock copolymer surfactant as template.

我们分别使用TS-1和FeS-1导向剂为无机原料，以三嵌段共聚化合物表面活性剂为模板，合成了钛硅介孔分子筛MTS-9和铁硅介孔分子筛MFS-9。

It has been warranted through experiments and practical application that rare-earths-high-aluminium heat-resistant nodular iron has some intrinsic properties which are worthy of reconimandation, namely,that it will not scale after long periods of use at 1050-1100℃, will hardly break while being hammered into castings, runners or risers as the high-temperature tensile strength reaches 14-19 kg/mm2 at 800℃ or≥l3.3kg/mm2 at 900℃, with the room temperature strength close to HT 30-50 and the unnotched impact str...

本文介绍了稀土高铝耐热球墨铸铁的生产实践、化学成分；探讨了稀土作用及其用量和控制；论述了稀土和铝加入方式以及冷却速度对金相组织的影响；并对铸造工艺、铸件缺陷及分析、耐热性能及使用效果作了阐明。试验和使用证明：稀土高铝耐热球墨铸铁在1050～1100℃长时间工作不起氧化皮，热强度800℃时，14～19kg/mm~2，900℃时≥13.3kg/mm~2，室温强度近于HT30—54，a_k≈2～6kg·M/cm~2，锤击铸件或浇冒口，很难碎裂，并能机械加工。可以认为是以我国富产资源为原料，能用各种炉子熔炼、耐热和综合机械性能均较高硅、中硅中铝球铁、高铝片墨铸铁为高的一种耐热铸铁，也是镍铬系耐热材料较好的替代品。

Using LaNiO3 as a buffer layer, highly (100)-oriented PZT thin film heterostructures are successfully prepared using a sol-gel process on both Si and platinized silicon substrates.

采用LaNiO3缓冲层技术，在硅和铂化硅两种衬底上实现了高度(100)择优取向的PZT铁电薄膜。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐