金红石

When AgNO_3 concentration was higher than 0.03 M, the prepared samples consisted of anatase, brookite, rutile and metal silver nanocrystal particles, and their grain size ranges were 5-30 nm.

当AgNO_3浓度高于0.03 M时，Ag-TiO_2复合薄膜由锐钛矿、金红石、钣钛矿、金属银颗粒组成，它们的晶粒尺寸范围在5-30 nm。

1The nanocrystalline TiO2 film is prepared by sol-gel and appearance of the film is observed by SEM. The X-ray graph shows the film has lots of anatase and a few rutile TiO2, but does not have brookite TiO2. The average diameter of particle is 25nm according to Scherrer formula.

采用溶胶-凝胶法制备了纳米晶二氧化钛薄膜，通过扫描电镜观察了其形貌，X射线衍射表征显示出制备的薄膜具有大量的锐钛矿晶型和少量的金红石晶型，不含有板钛矿晶型，根据Scherrer公式计算出薄膜的晶粒的平均尺寸为25nm。

Using the aforementioned experimental methods,the author has performedcareful study on the thermoanalytical characteristic of nanocrystalline brookite-basedTiO2,and found that on the DTA curve there exists a small irreversible endothermicpeak,which is related to the dramatic structural phasetransformation from brookite to anatase then to rutile.

利用上述实验手段，作者首次对板钛矿基(brookite-based)纳米TiO2的热分析特性进行了较系统、深入的研究，发现在DTA曲线上存在一较小的不可逆、无失重吸热峰，对应于从板钛矿经锐钛矿到金红石的急剧转变。

Nanosized titania particles consisting of anatase, rutile and brookite phases were synthesized under solvothermal conditions with different alcohols as solvents, hexamethylene tetramine as precipitant as well as precursor of titanium trichloride.

采用不同的醇溶剂，以六亚甲基四胺为沉淀剂，以TiCl3为前驱体，通过溶剂热的方法控制合成出纳米级的锐钛矿型、金红石型和板钛矿型的二氧化钛。

The Product Is Suitable for separating the granularity is 0.3-0.02mm of the iron ore,limonite,chromites,trotline,zirconium,retiles,monazite,centimes,wolfram ore,Stan nary,tantalum minerals,niobium minerals and other non feerous metal,rare metal and non metal.

本设备适用于分选粒度0.3--0.02毫米细料的铁矿、钛铁矿、铬铁矿、硫铁矿、锆英石、金红石、独居石、磷乙矿、钨矿、锡矿、钽矿、铌矿以及具有比重差异的其他有色金属、稀有金属和非金属矿物体。

The fluidized bed chlorinator without the perfora-ted-plate developed in this process can stably and continuously operate in a long period of time.

研究开发的无筛板沸腾氯化炉可以长期稳定地连续运转，生产出的人造金红石品位为92.10％。

With increasing the annealing temperature, the crystal structure changes from anatase to rutile and the crystallite size increases.

随着热处理温度升高，晶体结构由锐钛矿晶相向金红石晶相转化，同时微晶的颗粒尺寸增加。

By the end of 1998, minerals that had been discovered, confirmed and explored included: cyanite, silex ,quartz,xanthoconite, others that need proving up and exploring included: mica, phosphorite, diamond, rutile, crude oil, kalium ore, etc.

至1998年底，发现、探明并已开发利用的矿种有：蓝晶石、硅石、石英砂、黄砂，有待探明和开发利用的矿种有云母、磷矿石、金刚石、金红石、石油、钾矿石等。

Most of amphiboles are retrograde phase in the eclogite,with barroisite,magnesiocatophorite and so on.

榴辉岩峰期变质的矿物组合为石榴子石+绿辉石+多硅白云母+金红石，变质温度在500℃左右，压力在2.3Gpa左右。

The main minerals are hi-pure quartz sand ( the total reserve is about 780,000,000 tons), crystal (the total reserve is about 8,000,000 tons), vermiculite (the total reserve is about 16,180,000 tons) and epidote (the total reserve is about 7,360,000 tons).

主要有高纯石英砂（总储量约7.8亿吨）、水晶（总储量约800万吨）、蛭石（总储量约2230万吨）、金红石（总储量约61.5万吨）、石榴石（总储量约1618万吨）和绿辉石（总储量约736万吨）。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。