查询词典 titanium

Polymerization of norbornene was carried out in the presence of a catalyst system consisting of amidogen substituted mono(η~5-cyclopentadienyl)titanium/methyl aluminoxane.

采用胺基取代单茂钛{Cp~*TiCl_2N[Si(CH_3)_3]_2}与甲基铝氧烷组成催化体系催化降冰片烯聚合，得到有一定结晶结构的、可溶的聚降冰片烯。

Plasma etched through the meters of titanium-A armor plating like a blowtorch through rice paper, and her center amidships decks vented.

等离子穿透数米钛A型装甲板就像喷灯烧穿烟纸，她的腹部中心甲板暴露出来。

Result showed that amorphous ammonium titanium phosphate with an average particle size of 40 nm was obtained when product was kept at 80℃ for 3 h.

结果表明，80℃干燥3h得到的是无定型磷酸钛铵产品，平均粒径约为40 nm，磷酸钛铵催化合成乙酸丁酯中是一种极好的非均相催化剂。

Meanwhile,anatase form of TiO_2 thin films were prepared by anodic oxidation of titanium plates.

首先通过高温热解的方法合成了不同尺寸的CdSe量子点。

Has developed the world's leading high levels of visible activity of anatase titanium dioxide Sol series of products and production technology.

开发出具有世界领先水平的高可见光活性的锐钛矿二氧化钛溶胶系列产品与生产技术。

Guangxi xingmeixiang is focused on the manufacture and trade of a series of titanium dioxide anatase.

企业以锐钛型钛白粉系列产品的制造、研发为主营业务。

Some typical structures of titanium nanowires , i.e. four-strands helical, centered pentagonal, hexagonal and the thicker hexagonal structures are chosen to study the structural and size effects of ultrathin nanowires. The angular correlation functions and vibrational properties are discussed.

我们选择不同的结构和生长序列的几个典型的超细钛纳米线，即四边形、五边形和六边形序列，以及六边形序列的两个较大体系，以分别考察结构和尺寸效应。

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。

First of all, titanium has excellent biocompatibility, high mechanical strength and low proportion; the second, the potential biological toxicity of non-noble alloys (such as alloys of Co-Cr and Ni-Cr)was avoided; the third, the disadvantage of over-abrasion of antagonization teeth resulted from high rigidity of porcelain was also avoided; the last, metal-resin bonding prostheses was easy to be repaired in mouth.

随着硬质树脂性能的进一步提高及钛铸造技术和粘结技术的发展，钛-树脂粘结修复体的应用将越来越广。通过课题组成员的一致努力，以往困扰钛-树脂粘结修复在临床应用的钛与树脂的粘结强度较低这一关键问题已较好的得以解决。

The effects of alkali treatment on the deposition of apatite on various titanium alloy substrates have been studied.

改变碱液处理条件和基体材料，考察了这些参数对钛合金诱导磷灰石能力的影响。

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。