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Stone is from rock, and rock is consist of the mineral, the mineral contain iron is the source of the iron in stone products , iron element spread widely in natural world, but most of them appear to be compound, iron element is belong to medium activity metal, under high temperature is easily to be strongly acted with oxygen, sulfur, chlorine, and easily dissolve in abio-weak acid solution and strong hydrochloric acid solution, at the same time, the strong alkali solution also corrade the iron.

石材是岩石经加工后所产生的制品,岩石是由矿物组成的,其中含矿物是石材中质的来源。元素在自然界中分布甚广,但大多以化合物的方式出现,由于元素属中等活泼性的金属,在高温下易和氧、硫、氯等元素发生强烈反应,并易溶于无机稀酸和浓盐酸的溶液中,同时浓碱溶液也易侵蚀

Indeed, the Grand Canal was constructed partly utilizing the pre-existing channels connecting these lowland swamps and lakes (3) Several rivers have produced deltaic forms on the western side of the lakes;(4) A series of artificial islands have been constructed upon the natural bars or barriers located in the lakes and wetlands, and are locally termed Duo, Dun or Wei (meaning artificial bars or crossways in Chinese).

钻孔B/M界线之下(4078 m~4530 m)的泛滥平原河湖相沉积物中局部地段富含锰鲕粒,其主要矿物组成为蛋白石、的氢氧化物(包括纤矿、水纤矿、针矿、水针矿,统称褐矿)、锰氧化物(包括硬锰矿和软锰矿,以硬锰矿为主)及极少量的细小碎屑矿物(钾长石、蚀变黑云母、含白云母、锆石、独居石、金红石和含钛磁矿)。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite、hematite、 SFCA、larnite、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

为此,本文对不同组成、不同烧结条件的烧结矿样品进行了系统的显微分析和研究,其主要内容包括:(1)构成低氟烧结矿的主要组元有磁矿、赤矿、酸钙、硅酸二钙、玻璃体和气孔,由于含氟量的降低,枪晶石等含氟矿物并未形成,氟分布在后期凝固的玻璃体中,其中硅酸二钙和酸钙受碱度影响较大,硅酸二钙在碱度为1.72~1.96范围内形成较多,酸钙在碱度大于1.96含量增多,赤矿呈磁矿假象,多分布在气孔周围,各组元的生成顺序为:磁矿—硅酸二钙—酸钙—玻璃体。

Results: All patients anemia were improved, the value of hemoglobulin in venofor group increased 19.2g per month, and was higher than that of Niferex (14.8g/month)(P.01). The dose of Epo in venofer group was lower than the Niferex group.

结果:用Epo后,2组患者贫血均改善,多糖复合物组Hb每月上升14.8 g/L,Epo用量比蔗糖组多19.5%;而蔗糖组可迅速改善CRF透析患者贫血,Hb每月上升19.2 g/L,Epo用量较小,与多糖复合物组比较差异有显著性(P.01)。

The quality is a burnt magnesia spinel brick made from fused magnesia, low iron sintered magnesia and fused hercynite.This synthetic hercynite is a patent by RHI Refractories.

它由电熔镁砂、低烧结镁砂和电熔铝尖晶石制成的烧结镁尖晶石砖,这种人工合成的铝尖晶石是RHI奥镁公司的专利。

These compounds are of substantial interest both inviewpoints of theory and practical applications, mainlyunder the stimulus to achieve synthetic models either foractive sites of iron-sulfur proteins or for transitionmetal catalysts. This thesis describes the synthesis, structures andconformations of 51 new iron-sulfur cluster complexes,which have been characterized by elemental analysis andstandard spectroscopic methods. In addition, single-crystalX-ray diffraction analyses were performed for 4 representa-tive new compounds. Reactivities of μ-〓 with mono- and di- Grig-nard reagents derived intermediates toward various organicelectrophilic substrates were studied, along with complexa-tion of arynyl-containing iron-sulfur clusters by 〓Thus, several bridged, non-bridged, monomeric, dimeric,homonuclear, heteronuclear iron-sullfur and iron-sulfur co-balt-carbon cluster complexes were synthesized. A novelreaction and convenient route for the synthesis in highyield of tetranuclear iron complexes 〓 containing atetracoordinated sulfur atom was discovered, whereas aplausible mechanism based on experimental results was propo-sed for the formation of the new cluster type.

鉴于有机硫原子簇化学在基础理论发展和应用方面的重要意义,因此我们开展了这一课题的研究,并取得以下主要成果: 1、本文共合成了51个新有机硫及含钴碳簇基的有机硫原子簇配合物,除用元素分析,NMR,IR,MS法表征其结构和构象外,还用X-光衍射技术测得四个代表性配合物的单晶结构和构象; 2、我们业已发现炔基Grignard试剂同〓可形成一种&开环&与&闭环&中间物的平衡混合物,研究该平衡混合物同各种亲电试剂的反应; 3、研究发现了一种可高产率地形成〓含〓四配位硫挛合簇的新化学反应并对此反应提出了—种有趣的反应机理; 4、首次由1,4-二溴丁烷双Grignard试剂与〓制得一种新型硫簇双硫阴离子活性中间体,并进而研究了它的亲核反应性能; 5、找到了通过〓的光化学反应来合成簇合物〓-〓的一条有实用价值的新路线。

On the other hand, Cu, Co and Ni are all present in manganese phase in the hydrogenic nodules.

这些过渡金属元素在成岩作用形成的结核中的存在与锰结核中锰矿物和的氧化物、氢氧化物的晶体化学特征密切相关,而在水成作用形成的锰结核中的富集与锰矿物和的氧化物、氢氧化物的晶体化学特征关系不大。

By analyzing the crystal structure of ilmenorutile and the infrared spectrums of ilmenorutile reacted before and after with alkylhydroxyoximate, the adsorption form between ilmenorutile and alkylhydroxyoximate can be proved to be chemical adsorption.

通过铌金红石晶体结构和铌金红石与烷基羟肟酸盐作用前后红外光谱的分析,论证了铌金红石与烷基羟肟酸盐的吸附形式为化学吸附,并确定了烷基羟肟酸盐在铌金红石表面的吸附模型。

It may be the third largest iron meteorite in China. Fe content is 94.02%, Ni content 5.29%, and Co 0.45% in the iron meteorite. The main mineral is kamacite, and crystal and aggregate of schreibersite were also found in the iron meteorite.

通过初步的化学分析和矿物学分析,发现其含量为94.02%,镍含量为5.29%,钴含量为0.45%,主要矿物为纹石,局部含有陨磷镍石的晶体或集合体,表明它是一块典型的陨石。

Magnetoelectric layered hybrid structures are a kind of composite of ferroelectric and ferromagnetic layers, which exhibit both ferroelectric and ferromagnetic properties simultaneously.

磁电层状复合结构是层状电相与磁相的复合,该层状结构同时具有电性和磁性,呈现出磁电耦合效应。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。