查询词典 firstly

Firstly, a spherical mesh with regular subdivision connectivity is constructed to partition the spherical domain into some small regions. Then the region, which contains the query point p, is found according to the position of p and selected as the search area for locating p. During the point location, the barycentric coordinates are used to extract local heuristic information about the location of p so as to find the shortest path from the start triangle to the target one containing p.

通过构造规则子分网格将原始球面网格区域划分成若干具有子分层次关系的查询小块；在进行查询前，根据查询点p的位置找到它所在的小块作为搜索区域，从而极大地缩小了查询范围；在查询过程中，根据重心坐标所包含的启发信息，选择一条从初始搜索三角形到目标三角形的最短查询路径。

Firstly, on the base of the strictly monotone map, we provide the definition of strictly invariant quasi-monotone map, it is the extent of the strictly monotone mapping, at the same time, it is the especial case of the invariant quasi-monotone map, too. It is supported by some examples.

在理论部分做了三方面的工作：首先，在严格拟单调映射的基础上，提出了严格不变拟单调映射，它是严格拟单调映射的推广，同时也是不变拟单调映射的特殊情况，举例加以说明。

Firstly the basic principle of OFDM and its anti-multi-path-fading are briefly introduced in this paper. Then basing on this point, we researched the basic principle, the coding designing and the algorithm of the signal detection of these MIMO-OFDM systems. At the same time, the performances of STBC-OFDM and SFBC-OFDM were analyzed and simulated under short wave circumstance, and got some useful conclusions, they have certain reference value for more research of short wave communication in future.

本文首先介绍了OFDM系统的基本原理以及它对抗多径的基本原理，然后在此基础上，对其所形成的几种MIMO-OFDM系统的基本工作原理，码字设计以及相应的信号检测算法进行了研究，详细分析研究了STBC-OFDM和SFBC-OFDM系统的性能并在短波信道下对其性能进行了仿真和对比分析，得出了有用的结论，这对以后短波通信的深入研究具有参考价值。

Firstly, according to this character, primacy central point is detected by the exploring extremum method in the windows of 3×3 pixels. Then, basing on this central point, approximate normal line at ±45°、0°and 90°angle are drew.if the minimums of normal line is at central point and the difference between the minimums and the maximum in the normal line is more than the threshold, this point is considered to the edge point of image.

首先，在3×3象素的窗口中，如果中心值为最小值，则以该点为基础，以±45°、0°和90°方向作为近似法线带，然后判断该法线上的象素最小值是否在切点上（即是否在法线的中心点上），再通过检验切点与轮廓法线上亮度极大值的差值是否超过阈值，来判断切点是否为边缘轮廓上的点。

Firstly, the most important thing is to recognize the type of battle.

首先，最重要的事情是确认战场的类型。

Firstly, the Nanjing bawdry industry changed the Nanjing residents" life custom, women"s clothing appearance as well as their overall characteristics.

南京娼妓业对社会发展的影响，首先表现在对南京市民的生活习俗、妇女的服饰打扮以及整体气质的影响上。

Firstly,we put more emphasis on:when you read in your university,you ought to be absorbed in acquiring knowledge and skills.

首先，我们更多地强调：你在读大学时应该集中精力学习你的专业知识和技能以及所有文化课。

Firstly, students will be confronted with so many psychological problems.

首先，学生面临很多心理问题。

Firstly, every blade must be tested to ensure the hardened and tempered steel characteristics.

磨出一把好胶刀是割好胶的第一关。

Until, before and during the culture revolution, the enthusiasm for politic had made the form of sculpting become a kind of artistic exaggeration in the vision of picture poster, in which there were three things accounted for the occurrence: firstly, the stylized shapes and composition formed an unitary expression; secondly, to be in 'high spirits' for politic must have an exaggerated and strengthened way of expression to suit with; thirdly, it was restricted by then economy and technology level so as to have to use plenty of cement as substitute, in which had only modeled on a big scale briefly.

及至文革前及文革时期，这种政治热情使雕塑语言发展成了一种夸张的宣传画式的视觉效果。其原因有三。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。