查询词典 magnetite

The mineral components are tremolite dominantly,with minor actinolite,diopside,epidote,clinozoisite,magnetite,pyrite and other impurities.

其结构主要为纤维状、柱纤状、粒纤状变晶结构、局部为放射状或帚状变晶结构等，以纤维状变晶结构最为常见。

The formation and evolution of magma have experienced three stages:① thermal fluid led to higher partial melting of lithosphere mantle and then formed hypoalkaline basalt with saturated initial sulfur when ascending asthenosphere contacted with the lithosphere mantle;② the initial magma intruded into the lower crust to form magma chamber, the crystallization of magma produced stratiform-like cumulate, including olivine, hypersthene, augite, magnetite, and then formed residual gabbroic magma with the participance of crustal material;③ the residual magma and ore-bearing cumulate intruded upward successively to shape original mafic complex rocks in Wuxing when the magma chamber cracked.

岩浆形成与演化经历了3个阶段：①上升的软流圈与岩石圈地幔接触，热流体作用导致岩石圈地幔发生高度部分熔融，形成初始硫饱和的次碱性玄武岩；②初始岩浆上侵，在下地壳形成岩浆房，岩浆结晶作用形成以似层状橄榄石、紫苏辉石、普通辉石和磁铁矿等为主的堆晶岩，在地壳物质的参与下形成残余辉长质岩浆；③岩浆房破裂，残余岩浆和含有熔体(0%)的堆晶岩相先后上侵形成五星原始镁铁质杂岩。

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铁矿、赤铁矿、铁酸钙、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，其中硅酸二钙和铁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，铁酸钙在碱度大于1.96含量增多，赤铁矿呈磁铁矿假象，多分布在气孔周围，各组元的生成顺序为：磁铁矿—硅酸二钙—铁酸钙—玻璃体。

The results indicate that in the process of dissimilatory metal reduction, NTA and AQDS can accelerate the speed of ferric oxides reduction and magnetite generation in the initial stage, but magnetite production prevents further iron reduction. Direct contact is a very important way, and the biomembrane formed by adsorption for long time is a critical factor for reduction.

结果表明，微生物异化还原铁氧化矿时，NTA，AQDS在初始阶段显著加速铁氧化物的还原，但也加速磁铁矿的生成，阻碍反应继续进行；直接接触方式起着重要作用，吸附形成的生物膜是一个关键因素，其形成是一个相对较长的过程。

In this work, according to the fact that the precipitation of ferreous and ferric iron to form magnetite nanoparticles is the fast reaction, we designed a new forced mixing route to prepare magnetite using nitrogen press in T type of tube to reach the intention of mixing in microscale and avoiding oxidation.

本文针对目前磁分离载体研究过程中存在的主要问题，从理论和实验两方面入手，设计和制备了两种纳米结构的生物磁分离载体微球，探讨了相关的科学问题，并在生物与医学应用方面进行了初步的研究。

By mineralogical analysis of Jidong magnetite concentrates what can be found is that: It is mainly composed of magnetite, concentrate grain is medium-coarse granular crystal texture, the most is subidiomorphic or xenomorphic, is chevron and granulated, surface of the concentrate is smooth, minority of concentrate has inclusion or intergrowth, grain inch normally is 0.05~0.16mm, there is incompletely cleavage in concentrate grain.

矿相分析表明：冀东磁铁精矿粉以磁铁矿为主，矿粉颗粒为中粗粒变晶结构，多为半自形或他形，呈尖棱碎粒状，其表面光洁平滑，少数有包裹体或连生体，粒径一般为0.05～0.16mm，矿粒存在不完全解理。

This follows the data from Firth,[9] where the observed time required to completely oxidize the magnetite in the fluxed pellets was longer than that recorded by Papanastassiou and Bitsianes[1] using acid magnetite pellets that contained no carbonate flux.

在此之前，从河口，[9]这里观察所需的时间完全氧化球团在熔磁铁矿数据长于由Papanastassiou和Bitsianes [1]记录使用酸含有磁铁矿颗粒没有碳酸盐通量。

There are three effects that may be important in producing this trend. First, lowtemperature oxidation preferentially affects the finer single-domain magnetites responsible for the Hopkinson peak, which is therefore suppressed in the more oxidized loams. Second, the possible production of uniaxial magnetite with shape anisotropy can also lead to a relatively muted Hopkinson peak. There is, additionally, a third alternative, and the one preferred here, that the natural alteration processes involved in pedogenic susceptibility enhancement have probably depleted the supply of ironbearing precursor phases, so that less new magnetite is formed on heating.

产生这种特殊热磁性质的可能原因如下：第一，成土过程中的低温氧化作用减弱了磁铁矿的Hopkinson效应；第二，可能是成土过程中生成的一向延长的针状磁铁矿颗粒表现出较弱的Hopkinson效应；第三，随着成土作用增强，现代黄土、黑垆土中的硅酸盐、粘土矿物因受土壤化作用分解而越来越少，加热过程中分解产生的磁铁矿造成的磁化率增强相对于其初始磁化率也就越来越小，从而产生越来越弱的Hopkinson/alteration峰，本文认为这是最主要的原因。

Has completed major projects including the world-famous giant white horse in Panzhihua City, vanadium and titanium magnetite, vanadium and titanium magnetite red grid, Lala Copper Mine, the largest long-Salt Salt Group, the Duke of Zhou Spa, Luofu Spa, Hai Luogou Spa , Sino-foreign joint ventures, wholly-owned cement with limestone, Chongqing Municipality in Yangsan, Yong-rong, Tianfu, South-tong, pine species, Sichuan climbing coal, can be wide, bamboo and other mining bureau of coal mine owned a large number of small and medium-sized coal mine restructuring , The continuation of Nanchuan bauxite, gold agate shell, Guizhou Hezhang siderite, Fuquan phosphate rock and phosphate rock Xundian Yunnan, Tibet, such as gold sand.

已完成的主要项目包括世界著名的攀枝花市白马特大型釩钛磁铁矿、红格釩钛磁铁矿、拉拉铜矿、久大盐业集团盐矿、周公山温泉、罗浮山温泉、海螺沟温泉、中外合资、独资水泥用石灰岩、重庆市中梁山、永荣、天府、南桐、松藻、四川攀煤、广能、达竹等矿务局所属煤矿、大量中小型煤矿改制、延续、南川铝土矿、玛瑙壳金矿、贵州赫章菱铁矿、福泉磷矿、云南寻甸磷矿、西藏砂金矿等。

The LHR values of walnut shell, magnetite particles and ceramic sand were 76.41, 1.057 and 0.8769 respectively, which showed that walnut shell was lipophilic obviously while magnetite and ceramic sand seemed to be hydrophilic.

实验测得核桃壳、磁铁矿和陶粒砂的亲油亲水比依次为76.41、1.057和0.8769，说明核桃壳滤料的亲油性很好，而磁铁矿和陶粒砂滤料表现了更好的亲水性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。