查询词典 vector field

Flow characteristics of flow field in the header of platefin heat exchanger were investigated by means of particle image velocimetry and a series of velocity vector and streamline graphs of different crosssections before and after the header improvement were achieved.

利用Particle Image Velocimetry粒子图像测速仪对板翅式换热器入口结构改进前后的流场进行了实验测试，获得了入口结构内部不同剖面处的流场速度矢量和流线分布图。

Taking the close-well-net of Zhangcun Coal Mine as the example, this paper expounds the arrangement and observation of the GPS net, the calculation of the baseline vector, the detection of field data, the detection of closure error , the adjustment treatment of GPS net, and the precision analysis, etc.

以漳村矿近井网测量为例，阐述了GPS网的布设及观测、基线向量的解算和外业数据的检核、闭合差检验、GPS网平差处理及精度分析等。

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。