查询词典 pyrite

The settling velocities of galena,titanomagnetite and pyrite in the froth layers are determined,and the effects of the particle size and the surface hydrophobicity on the settling velocity in the froth layers are investigated.

试验测定方铅矿、钛磁铁矿、黄铁矿颗粒在泡沫层中的沉降速度，分析研究粒度及表面疏水性对颗粒在泡沫层中沉降速度的影响。

It can be seen that mercury contents in sulfides of the density fractions are different from each other in the same coal, which implied that mercury is distributed in sulfide unhomogeneously. The reasons of the unhomogeneity of mercury distribution in sulfide may be that mercury exist in sulfide in form of submicrometer size individual mineral such as cinnabar, and not in form of solid solution in pyrite, or that in coal, there are multi-stage and multi-origin sulfides among which the distribution and modes of mercury are different from each other.

这种差异性说明煤中黄铁矿中汞的分布是不均匀的，这表明：汞在黄铁矿中可能不是以固溶体形式存在，而可能是以细小的呈机械包裹物的独立矿物形式赋存于黄铁矿中；或者煤中存在多期、多成因的黄铁矿，不同期次成因的黄铁矿间汞的分布和赋存状态具有差异性。

In oxygen deficient high temperiture combustion, the amount of volatic material evolved influene the conversion of sulfur in coal, high volatile content restrains the oxidation of pyrite and iron sulfide , which causes compavatively large amount of iron sulfide left in char. At the condition of air coefficient α=0.4, the sulfur conversion is up to 87% for SHONGZHAO anthracite coal, 72% for FORGCHANG bituminous coal, and the conversion is compeleted within 0.5 see.

在高温贫氧状态下燃烧，煤中硫的释出率高于煤的燃烧率，高挥发份将抑制黄铁矿的氧化释放出来，即影响煤中硫的释出率，在过量空气系数为40％时，松澡无烟煤能达到87％的硫的释出率，丰城烟煤达到72％的硫的释出率。

Diamond bits require lower WOB,high rotary speed and small flow rate,useful for hole straightening and inclining prevention,and it can be used high-density drilling fluids.But diamond bits can′t effectively drill heterogeneous hard formations which contain chert,pyrite and silicastone.

金刚石钻头的钻压小、转速高、排量小，有利于纠斜防斜，可在高密度钻井液条件下使用，但它不能有效地钻进含燧石、黄铁矿和硅质的不均质坚硬地层。

The experiments include the flotaion of the different types of the Yinshan ores with different kinds of the flotation reagents and different flowsheets. The authors consider that for the flotaion of the lead and zinc ores, the necessity of using cyanides as depressants depends chiefly on the amounts of pyrite present and its ...

作者认为，对于那些黄铁矿含量少或黄铁矿易被抑制的铅锌矿石，采用优先浮选而不用氰化物作抑制剂是可行的，但对于那些含量大且可浮性好的黄铁矿的矿石，如果完全不用氰化物则要从药方与流程等来考虑。

Solution from the deep crust and from magma is also involved in the formation of gold deposit. Disseminated pyrite in the stratum, derived from the deep and magma ore solution, is formed at deoxidizing environment.

黄铁矿中Au，As含量很高，其稀土元素配分模式与岩石有一定的相似性，而石英与方解石的则与岩石的有较大的差异，显示形成的流体是有深部流体的参与。

Pyrite decay is when the stone slowly disintegrates into a white powder over time.

硫铁矿衰变是当石头慢慢分解成白色粉末，随着时间的推移。

The sulphur in E'Kou Ironstone comes from sulphide (pyrite,pyrrhotite,chalcopyrite, binarite)and sporadically distributes in the ore or veined parallels/intercalates banded ferrosilicon formations.

峨口铁矿矿石中的硫来源于硫化物(黄铁矿、磁黄铁矿、黄铜矿、白铁矿)，呈星点状，散布于矿石中或呈脉体平行或穿切硅铁建造条带。

Acidic aqueous ferric sulfate was abstained by heating maturating, dissolving and filtration process of mixture of pyrite cinders and sulfur acid.

摘 要：硫铁矿烧渣是硫酸制备过程中产生的固体废弃物。将硫铁矿烧渣与硫酸混合后，经过熟化、水溶、过滤得到酸性硫酸铁溶液。

The dissolution of pyrite in acidic solution was relatively fast and easily ranched to dissolution equilibrium.

黄铁矿在酸性溶液中溶解速率相对较快，并且容易达到溶解平衡。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷