钛

The utility of titanium alloy in clinical cranioplasty is convenient,safe,effective and rare in complication.......

使用钛网作为颅骨缺损成形材料效果满意、安全、并发症少。钛网；颅骨成形术

Ammoximation of cyclohexanone in the presence of a titanium silicalite (TS 1) catalyst was studied.

摘 要：研究了自制的无机钛硅原料体系TS - 1催化环己酮氨氧化反应，结果表明：钛进入了分子筛的骨架中，构成了TS - 1催化活性中心。

In the presence of the combination of sulphuric and phosphoric acid, with sodium diphenylamine sulfonate as the indicator, standard solution of potassium dichromate was used to titrate total iron value.

试样以盐酸溶解后，在酸性介质中，先以氯化亚锡将三价铁大部分还原为二价，然后在钨酸钠指示下，再以三氯化钛将剩余的三价铁还原为二价，过量的三氯化钛以重铬酸钾氧化消除干扰，在硫磷混合酸存在下，以二苯胺磺酸钠为指示剂，用重铬酸钾标准溶液滴定全铁量。

Iron-based perovskite-type compounds modified by Cu, Zn, Ni were prepared through sol-gel process to investigate their catalytic activities of NO direct decomposition. XRD analysis reveals that the samples calcined at 750℃ are pure perovskite phase.

采用溶胶－凝胶方法合成了Cu，Zn，Ni改性的钙钛矿复合氧化物系列催化剂。X射线衍射分析表明，750℃焙烧的此类催化剂在掺杂范围内均具有钙钛矿基本结构。

Those results make basis for fabricating discontinuously reinforced titanium matrix composites with high properties and broadening the application area of discontinuously reinforced titanium matrix composites.

这些研究为以后制备高性能的钛基复合材料和拓展钛基复合材料的应用领域打下了坚实的理论基础和为批量生成提供了实用途径。

Those results make basis for fabricating discontinuously reinforced titanium matrix composites with high properties and broadening the application area of discontinuously reinforced titanium matrix composites. They also provide practical way for commercial production of titanium matrix composites with high properties.

这些研究为以后制备高性能的钛基复合材料和拓展钛基复合材料的应用领域打下了坚实的理论基础和为批量生成提供了实用途径。

A series of rational craft parameters to prepare nanosized titanium dioxide are confirmed through the craft experiments. The testings of nanosized powder produced show: its size distribution is even; purity is high; dispersiveness is good: the specific surface area is high; its activation is good, and content of rutile is more than 80%.

工艺性实验得到一组比较合理的生产纳米二氧化钛的工艺参数，对生产出的纳米二氧化钛粉体进行测试，发现其颗粒分布均匀、纯度高、分散性好、比表面积高、活性好，晶红石型含量为80%以上。

In addition, electrolytic experiments were carried out with platinum as anode and titanium as cathode at constant current in electrolytic cell without membrane.

使用无隔膜的电解池，以钛基镀铂电极为阳极，以钛电极为阴极，在恒电流的条件下进行了电解实验。

The general judgment of ferroelectrics perovskite stability using the tolerance factor and electronegative value of force difference,the stability of ferroelectrics perovskite can be well explained.

利用容忍因子和平均电负性力标差值作为钙钛矿稳定性的综合判据能很好说明钙钛矿稳定性。

Barium calcium titanate crystal is a new photorefractive crystal. The BCT crystal has more excellent electrooptics properties than BaTiO_3 and has no phase transition at 5℃, which make this material quite attractive for applications.

钛酸钡钙晶体是一种新型的光折变材料，由于其优于钛酸钡的电光性能及无室温相变的优势，使其具有更大的应用前景。

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。