赤铁矿

The results show that the mineral phases of coal ashes which are ashed at 815℃ mainly include quartz, anhydrite, hematite, portlandite, lime and potash feldspar.

结果表明，815℃煤灰的主要晶体矿物质组成为石英、硬石膏、赤铁矿、氢氧钙石和石灰等。

The analysis by XRD spectrum discriminate that the magnetite, Haematite, pyrrhotite and quartz from samples are found at site6 of adjacent to steel-making furnace, supporting the conclusions from magnetic measurements.

与石英相比，磁铁矿、赤铁矿和磁黄铁矿含量的强度较弱，这与前文中提及的气溶胶浓度与主要反映亚铁磁性矿物的磁性参数呈弱负相关的结论是相符的。

In the course of groundwater towards the center of the depression cone, not only the dissolution of calcite, dolomite and hematite, the precipitation of siderite and melanterite may occur, but also the cation exchange between Na+ and Ca2+, Fe oxidation- reduction of Fe may occur.

地下水在向降落漏斗中心区的径流过程中，不但发生了方解石、白云石和赤铁矿的溶解作用以及菱铁矿和水绿矾的沉淀作用，而且发生了Na+与Ca2+的交换、铁氧化-还原反应等一系列复杂的水-岩作用。

In the course of groundwater towards the center of the depression cone, not only the dissolution of calcite, dolomite and hematite, the precipitation of siderite and melanterite may occur, but also the cation exchange between Na(superscript +) and Ca(superscript 2+), Fe oxidation-reduction of Fe may occur.

地下水在向降落漏斗中心区的径流过程中，不但发生了方解石、白云石和赤铁矿的溶解作用以及菱铁矿和水绿矾的沉淀作用，而且发生了Na与Ca(上标 2+)的交换、铁氧化－还原反应等一系列复杂的水－岩作用。

The result makes clear, can be restrained on certain level by starch but the siderite with weaker inhibition in hematite and quartz exterior adsorption overspreads a lid, it is the main reason that causes Dong Anshan to contain carbonate iron ore to turn over floatation difficulty.

结果表明，可在一定程度上受到淀粉抑制但抑制功能较弱的菱铁矿在赤铁矿和石英表面的吸附罩盖，是引起东鞍山含碳酸盐铁矿石反浮选困难的主要原因。

"It occurs rarely as a free metal, occasionally in natural alloys, and in hundred s of minerals and ores, including hematite, magnetite, limonite, and siderite."

地壳中游离铁很少见，而通常存在于合金及数百种矿物中，包括赤铁矿、磁铁矿、褐铁矿和菱铁矿。

With the decreasing temperature, the solubility of the other components in sillimanite decreased and most of the dissolved components were exsolved, resulting in the formation of the exsolution texture.

南极拉斯曼丘陵长英质片麻岩中的粗粒夕线石可能有内部出溶现象，出溶形成的矿物有磁铁矿、钛铁矿-赤铁矿和石英出溶矿物条纹，并有少量的斜方辉石。

As pyrites from Archean black shales worldwide show similar Fe iso- tope features to those from the two Chinese sulfide deposits, the enrichment of light Fe isotopes in early Precambrian ocean is likely to be regional, or even global.

导致早前寒武纪海洋富集Fe轻同位素的原因是海水中大量的Fe被氧化形成了富集Fe重同位素的磁铁矿和赤铁矿。

By calculating theoretically and testing, Topgallant void ratio of gas grid was determined.At high temperature,the charge material was suspending in gas bed,experiments of different magnetizing roasting temperature and roasting duration have been run by leading to reductive atmosphere containing CO.

在高温条件下，通入含CO还原气体，使物料处于悬浮状态，进行了不同磁化焙烧温度及时间试验，查明在650℃～760℃，焙烧时间10～60秒内，可以使菱铁矿(FeCO_3)、赤铁矿(Fe_2O_3)快速转变为磁铁矿(Fe_3O_4)。

The results show that the mineral compositions of feicui is more complex. Its main mineral is jade, and the other minerals are aegirine vryite and so on.

研究结果表明，翡翠的矿物组成比较复杂，主要矿物为硬玉，其次有霓石、透辉石、钙铁辉石、钠铬辉石和钠长石，还有少量绿泥石，铬铁矿，褐铁矿和赤铁矿等。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。