查询词典 rings

A serial of novel thiophene-based main chain conjugated compound with varieties of aromatic rings and heterocycle, such as acenaphtenequinoxaline phenanthrenequinoxaline ,have been synthesized on the base of looking for lots of references and summarized others research work.

在查阅大量文献和综合前人所作工作的基础上，我们选择卤代芳烃与Sn金属有机试剂在Pd催化下合成了以萘基喹喔啉和菲基喹喔啉为主的一系列噻吩与杂环构成的交叉共轭化合物。

The luminescent property of these materials was relative to the twisted angle between two benzene rings of the bridged biphenyl. The crystal structures of a series of seven-member heterocycle bridged biphenyls were determined by X-ray diffraction.

利用X射线单晶衍射仪确定了系列功能的七元杂环桥联联苯化合物的晶体结构，比较了桥联原子，6，6位取代基及分子间弱氢键对这类桥联联苯扭曲构象的影响。

These rings, like hidden subway lines, travel at different levels throughout the blocks, connecting public spaces planted within each individual building.

这些环状路径就像隐藏的地铁线路，在不同标高的街区之间穿行，联结了每个建筑中的公共空间。

Because it requires a high quality electron beam, it was first demonstrated and developed on electron storage rings.

由于对束流品质要求很高，相干谐波自由电子激光首先是以储存环作为驱动器而发展起来的。

A full-featured database system that has been specifically made to track the SS Himmler Honor Rings.

一个功能齐全的数据库系统已专门作出轨道的SS希姆莱的荣誉戒指。

To hold the right meaning of such promise rings, they can be worn on any finger including the thumb.

按照我国的习惯，订婚戒一般戴在左手的中指，结婚戒指戴在左手的无名指；若是未婚姑娘。

The main contents are modules on rings,representations of groups and character theory, categories, and homological algebra.

它为数学系各方向的研究生，提供基本的现代代数学的思想、方法、和工具。

The relative molar concentration ratios of c(superscript * subscript NO)/c(superscript * subscript NO2) changes as the temperature and pressure change. These results reveal that the two competitive reactions of C-NO2 homolysis (to form NO2) and isomerization may occur during the fast thermolysis of DNTF. NO formation from the cracking of furazan or furoxan rings may be limited by pressure.

结果表明，DNTF快速热裂解的主要产物CO、CO2、NO和NO2的相对摩尔浓度c与温度和压强有关，通过分析相对摩尔浓度比c(上标*下标 NO/c(上标*下标 NO2)随温度和压强的变化，揭示了DNTF中碳硝基C-NO2存在均裂生成NO2和异构化生成NO两条竞争分解的可能途径，同时压强可能抑制呋咱环和氧化呋咱环生成NO的可能性。

He invented several pieces of equipment including the parallel bars, the horizontal bar and the rings.

他发明了一些体操器械，包括双杠单杠和吊环。

Hubbard rings her bell and tells the conductor a man is in her room.

哈伯德环夫人和她的贝尔告诉售票员一个人在她的房间。

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。