钛

Transesterification between dimethyl sebacate and 1,2,2,6,6-pentamethyl-4-piperidinol was studied with tetraisopropyl orthotitanate ,lithium amide and di-n-octyltin oxide used separately as catalysts.

对癸二酸二甲酯与1，2，2，6，6-五甲基哌啶醇的酯交换反应进行了研究；分别考察了四异丙基钛酸酯、氨基锂、氧化二辛基锡3种催化剂的性能；采用氢核磁共振确定了产物的结构；考察了以四异丙基钛酸酯为催化剂时反应温度、反应时间、原料配比和催化剂用量对反应的影响。

PMW-PT, PNW-PT and PMW-PNN-PT ceramics with pure perovskite structure were prepared by the Semichemical Method or the Hydrothemal-Derived Precursor Method.

采用半化学法或水热前驱体法制备了纯钙钛矿结构的PMW-PT、PNW-PT和PMW-PNN-PT基弛豫铁电陶瓷粉体，探讨了钙钛矿相陶瓷粉体的形成机理，系统研究了各种影响因素对粉体或陶瓷的相组成、显微结构和介电性能的影响。

The hot-formation method for the preparation of the doped semiconducting oxide layer on the Ti substrate was studied.

研究了热形成法在钛表面制备掺杂的钛基氧化物半导体的方法。

Results: Follow-up ob servation of living cells revealed that upon the Ti disc there were cells migra ting from the cellular layer and attaching to the rim of it, forming cells bridg es between them, and then more cells were found to attach and orient as the cult ure went on.

结果：活细胞跟踪观察揭示钛片放入细胞层表面后即有细胞自细胞层表面向钛片侧壁移行、贴附，并在二者之间形成细胞桥。

Results: Follow-up ob servation of living cells revealed that upon the Ti disc there were cells migra ting from the cellular layer and attaching to the rim of it, forming cells bridg es between them, and then more cells were found to attach and orient as the cult ure wen

结果：活细胞跟踪观察揭示钛片放入细胞层表面后即有细胞自细胞层表面向钛片侧壁移行、贴附，并在二者之间形成细胞桥。

The encapsulated TiO〓 particles by polymer were obtained with soapless emulsion polymerization of methyl methacrylate in water in the presence of the pretreated TiO〓 particles.

一种是用偶联剂钛酸丁酯对亲水性TiO〓粒子进行预处理，钛酸丁酯与TiO〓表面羟基反应，交联到TiO〓粒子表面，使TiO〓粒子表面由亲水性转变为憎水性，改善无机粉体与有机单体的亲合性，再进行TiO〓存在下甲基丙烯酸甲酯的无皂乳液聚合，即可得到TiO〓-PMMA复合粒子：另一种方法是用表面活性剂对TiO〓进行预处理，再进行TiO〓粒子存在下甲基丙烯酸甲酯的无皂乳液聚合，TiO〓粒子表面可形成一层均匀的聚合物膜，提出了包覆机理，指出单体在无机粉体表面发生聚合的关键是预先在粒子表面形成聚合场所，即吸附一层表面活性剂。

Barium titanate ; electronic ceramic ; barium titanyl oxalate tetrahydrate ; preparation technology.

钛酸钡；电子陶瓷；草酸氧钛钡；合成技术

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。

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 labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。