钛辉石

The results show that the glass-ceramics with fibroid structure is produced after definite heat treatment, the main crystallization phase is hedenbergite and anorthite is the minor crystallization phase. The optimal process of heat treatment shows as follows: the nucleation temperature is 850 ℃ and hold time is 100 min, and the crystallization temperature is 980 ℃ and hold time is 80 min. With increasing heat treatment temperature, the FT-IR absorption bands appear obvious split, the aluminum-oxide polyhedron in the glass network changes from [AlO4] to [AlO6]. The titanium ion in the glass network gradually transforms to the 6-coordinated, moreover forms minicrystal of MgTi2O5 and Fe2TiO4 which provides the position of heterogeneous nucleation for the growth of crystal.

结果表明：在一定的热处理条件下可以以基础玻璃制备出主晶相为钙铁透辉石，次晶相为钙长石的纤维状结构的微晶玻璃；最佳的热处理工艺为：850 ℃核化100 min，980 ℃晶化80 min；随着热处理温度的升高，红外吸收带发生明显的分裂；玻璃结构中的[AlO4]向[AlO6]转化；网络结构中的钛离子逐渐转变为六配位，形成微晶相——钛酸镁和钛铁晶石，为晶体的生长提供非均匀形核位置。

Pyroxene grains in gabbroic anorthosite,troctolite,microporphyritic crystalline impact melt breccia,and Ti-bearing clasts are mainly low-Ca pigeoniteEn_(63Fs_(32)Wo_5,En_(66)Fs_(23)Wo_(11),En_(55)Fs_(38)Wo_7,and En_(57)Fs_(35) Wo_8,respectively,and those in anorthositie gabbro,gabbro,and the matrix display a wide range of compositionEn_(31～33Fs_(35～48) Wo_(19～34),En_(18～48)Fs_(23～51)Wo_(24～38)+En_(1～9)Fs_(65～86)Wo_(14～26),En_(11～53)Fs_(23～63)Wo_(6～36),respectively,mainly occurring as pigeonite,augite, and trace amounts of pyroxferroite.

辉长质斜长岩、橄长岩、微斑熔融角砾岩等岩屑和含钛玻屑中的辉石相对贫钙，主要为易变辉石(分别为En63 FS32 WO5，En66FS23WO11，En55FS38Wo7和En57FS35WO8)，而斜长岩质辉长岩和辉长岩岩屑中的辉石和晶屑辉石的成分变化比较大(分别为En31～33 FS35～48 WO19～34，En18～48 FS23～51 WO24～38+En1～9 FS65～86 WO14～26和En11～53 FS23～63WO6～36)，为易变辉石和普通辉石，以及少量三斜铁辉石。

The results show that the dissolution rate of various minerals in the slag decrease in the following order of spinel, diopside and perovskite.

结果表明：高炉渣中镁铝尖晶石最先浸出，其次是攀钛透辉石和富钛透辉石，钙钛矿的浸出速度最慢。

The results show that the water glass has a good selective depression for titanaugite in a weakly acidic medium with pH of 5.5-7.0, which is attributed to the strong action intensity between the water glass and titanaugite, hindering the adsorption of sodium oleate on the surface of titanaugite.

结果表明：在pH=5.5~7.0的弱酸性环境下，水玻璃对钛铁矿与钛辉石的抑制表现出良好的选择性，这是因为水玻璃与钦辉石间的强烈作用阻碍油酸钠在钛辉石表面的吸附，起到抑制作用。

According to the results of floatation of artificial mixed mineral and characterization of SEM, the surface of ilmenite will be coated by micro-size titanaugite, and the increase of mineral surface hydrophobicity can result in the increase of attractive force between the two kinds of mineral particles.

通过人工混合矿浮选试验结果和扫描电镜检测验证，微细粒钛辉石会在钛铁矿表面发生罩盖现象；矿物表面疏水性增强，两种矿物颗粒间的引力相应增大。

The flotabilty of titanaugite and ilmenite and the effects of different size fractions of titanaugite on the flotability of ilmenite were studied by flotation tests and DLVO theoretical calculations.

摘 要：采用浮选实验和DLVO理论计算，研究钛辉石和钛铁矿各自的可浮性以及各粒级钛辉石对钛铁矿可浮性的影响规律及机理。

Three main factors (viz. surface potential, particle size and surface wettability) that influence the interparticle interaction between titanaugite and ilmenite particles were investigated in detail through the calculation of DLVO theory, measurements of electrokinetic potential and contact angle, experiments of floatation and characterization of scanning electron microscope.

通过DLVO理论计算、动电位、接触角和扫描电镜检测及浮选试验，研究影响钛辉石和钛铁矿颗粒间相互作用的3个主要因素，即表面电性、颗粒粒径和表面润湿性。

Depression mechanism of sodium silicate on Titanaugite was that silicon acid colloidal particles with negative charge were formed by oxidate polymerization, adsorpted on the mineral's surface, provided the minerals with hydrophilicity, and consequently, Titanaugite was depressed.

水玻璃对钛辉石的抑制作用主要表现在：在弱酸性介质中，通过氧联反应聚合成的、带负电荷的硅酸胶粒在矿物表面吸附后，使矿物表面亲水，阻止了有机捕收剂羟肟酸在钛辉石表面与金属离子键合。

The results of DLVO theoretical calculations indicate that the total acting energy between the titanaugite and ilmenite particles at pH 5.9 is negative, showing as attraction, which causes the superfine titanaugite particles attach on the surface of ilmenite. At pH 8.5, because of large electrostatic repulsion energy, the total acting energy shows as strong repulsion, thus the superfine titanaugite particles can not attach on the surface of ilmenite.

DLVO理论计算结果表明：当pH=5.9时，两种矿物颗粒间的总相互作用能为负值，表现为相互吸引，微细粒级的钛辉石会在钛铁矿表面上粘附，使钛铁矿的回收率显著降低；当pH=8.5时，由于静电排斥能大，总相互作用能仍表现为较强的排斥力，微细粒钛辉石不能粘附在钛铁矿表面。

Infrared spectroscopic analysis shows that the water glass is chemically adsorbed on the surface of titanaugite but this reaction is weaker between the water glass and ilmenite; hetero-coagulation will occur easily under weak acidic condition because of the opposite surface charge of ilmenite and titanaugite.

红外光谱分析表明：水玻璃与钛辉石发生化学吸附，而在钛铁矿表面吸附较弱；在弱酸性条件下，由于钛铁矿与钛辉石表面带异相电荷而容易发生异相凝聚，添加水玻璃使二者表面电位均显负电性，矿粒间静电斥力迅速增大，从而减弱矿粒间的异相凝聚。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。