钛

Based on parameter free interionic potentials of the Gordon Kim modified electron gas formalism extended to molecular ions, the structure phase transitions in ionic molecular solids of the perovskites ABX 3 are discussed, which take the results of molecular dynamics simulations of KCaF 3 as an example.

基于无调节参数的Gordon－Kim势和一种检测离子运动的新技术，以KCaF3的分子动力学模拟结果为例，对钙钛矿ABX3的离子分子固体的结构相变作了探讨。包括对阱势、折叠结构、能垒、超离子态、稳定性骨架和离子分子集团BX6的"尺寸"和"形状"。以期对离子分子固体的结构相变有一个基本了解

PURPOSE: To assess the clinical effect of intermaxillary traction titanium screw on complicated mandibular fracture.

目的：评价骨内颌间牵引钛钉在复杂下颌骨骨折中应用的临床效果。

The intermaxillary traction titanium screw could reduce the time of operation, and shows high efficiency in fixation of mandibular fracture.

骨内颌间牵引钛钉能缩短手术复位操作时间，对下颌骨的整复固定和功能恢复效果良好。

The mouth openings of 58 cases were over 37 mm, only 4 cases less than 37 mm in 3 months postoperatively. Conclusion: The miniplate internal rigid fixation has the advantages over conventional intermaxillary fixation and wire fixation

下颌骨骨折的小型钛板坚固内固定效果可靠，避免了颌间结扎；对颞下颌关节功能影响小；口内手术入路避免了面部皮肤瘢痕；较传统的下颌骨骨折颌间结扎固定及钢丝拴扎固定有明显的优点。

METHODS: Fifty cases of complicated mandibular fracture received ten intermaxillary traction titanium screws and conducted intermaxillary fixation before operation; then the patients underwent open reduction and internal fixation; after operation intermaxillary traction was performed for 2-4 weeks.

对50例复杂下颌骨骨折患者先应用骨内颌间牵引钛钉进行颌间固定，再行切开复位内固定术，术后行骨内颌间牵引2~4周。

Exposuring the location of the fractures (except mandibular ramus and condylar fracture) through intraoral incision approach and using titanium neil to reposition the fractures as an anchorage is convenience and easy to operation. The other advantage is the unnecessary of intermaxillary wiring.

双侧下颌骨骨折均采用口内入路，钛钉作支抗辅助复位，行坚固内固定，手术方便，易操作，术后不需颌间结扎。

It is estimated that D atom prefers to takeposition of 3Ti-1Mo tetrahedron interstices, whereas H atom prefers to take 4Ti position.

Mo含量为0.03时，合金的分离因子约等于1.0，这是具有反同位素效应的纯钛氢化物和具有正同位素效应的Ti-Mo合金氢化物共同作用的结果。

OBJECTIVE: To observe the growth and propagation of vascular endothelial cells on the surface of intravascular stent material.

目的：观察内皮细胞在经刻蚀并构建仿生的生物活性表面，整合细胞外基质成分的金属钛表面的生长情况。

First-principles plane-wave pseudopotential calculations were performed to study energetics , the geometry structures of intrinsic vacancies and interstitials on the anatase TiO2 (101) crystal surface.

采用平面波超软赝势方法计算了锐钛矿型TiO2(101)面存在本征空位和间隙点缺陷的几何结构以及缺陷形成能。

Shot peening and rolling are the well-known methods that can increase the fatigue limit of Titanium and its alloys, however, the invigoration effect is limit.

喷丸和滚压是公认的提高钛及其合金疲劳强度有效的方法，但其强化效果都不太明显。

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。