查询词典 titanic

With a nitrogen purge after treatment at 300℃ the nanotubed titanic acid could not be suit as stationary phase for analysis of hydrocarbons C〓～C〓.

在300℃和N〓气氛下处理以后，纳米管特性完全消失，其不适宜再作为分析C〓～C〓烷烃的固定相。

The treatment of nanotubed titanic acid by heat under vacuum not only can cause the change for crystalline structure d morphology and surface property but also give affection to retention time and peaks symmetry of analytes.

在150℃、-0.1MPa真空下对钛酸纳米管处理以后，其形貌、结构和表面性质均发生变化，并对C〓～C〓烷烃分离的保留时间和色谱峰对称性产生影响。

But the titanic acid nanotubes were thermally unstable.

发现钛酸纳米管在高温时向锐钛矿结构转变，相转变的机制是由于纳米管在热力学条件下层间和层内进行脱水，正交结构遭到破坏后结构进行重新排列而导致的。

Peroxo titanic acid sol; needle-like anatase crystal sol; nano TiO2 thin films; hydrothermal reaction; photocatalysis

过氧钛酸溶胶，针状锐钛矿晶粒溶胶，纳米TiO2薄膜，水热反应，光催化

The invention relates to a process for producing polyethylene terephthalate 1, 3-propanediol, which comprises the following steps: using titanic acid ester as major catalyst, using germanium compounds and cobalt compounds as synergic catalyst, conducting esterification reaction for poly terephthalic acid and 1, 3-propanediol according to the molar 1:1.05-2.2 under the nitrogen pressure of 0.1-0.4MPa and 230-265 DEG C, or conducting ester exchanging reaction for poly terephthalic acid and 1, 3-propanediol according to the molar ratio 1:1.8-2.2 in 160-220 DEG C, decompressing reaction to high vacuum 10-150Pa, wherein the final temperature of reaction is 265-275 DEG C, recovering to normal pressure with nitrogen to obtain the PTT product.

本发明涉及一种生产聚对苯二甲酸1，3-丙二醇酯的方法，采用以钛酸酯为主催化剂，锗化合物和钴化合物为协同催化剂，对苯二甲酸二甲酯和1，3-丙二醇按摩尔1∶1.05-2.2，在0.1-0.4MPa氮气压力和230-265℃下进行酯化反应，或对苯二甲酸二甲酯和1，3-丙二醇按摩尔比1∶1.8-2.2，在160-220℃进行酯交换反应，将反应减压至高真空10-150Pa，反应终温在265-275℃，用氮气恢复到常压，得到本PTT产品；大大缩短了反应时间，直接聚合制备特性粘度在0.7-1.05dL/g的PTT切片，使反应产物色相良好，PTT产品可用于纤维加工及工程塑料领域。

Atalysts ; titanic ; acid ; esterification ; di（2ethyltexyl） phthalate

催化剂；钛酸；酯化；邻苯二甲酸二异辛酯

He is Titanic's Captain Smith .........

他就是铁达尼号的船长史密斯。。。。。。。。。

We have been making titanic effort to achieve our purpose.

我们一直在作极大的努力，以达到我们的目的。

I'd like / love to see the film titanic.

我很想去看电影《泰坦尼克号》。

I want to buy a ticket for the movie of Titanic ,but there is no more left.

我想买泰坦尼克的票，但是没有剩下的票了。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。