二维的

The two-dimensional sampling using two transects meet at right angles was applied to get quadrat data in this study.The detrended correspondence analysis ordination technique combining pattern analysis method is used for community pattern analysis here.

用垂直相交的两条样带在两个方向上同时取样的二维取样法，获得数据，用DCA排序与格局分析相结合的方法，得到群落不同格局规模斑块的长、宽及面积，实现二维格局研究。

A deadlock free plane self-adapting routing method in a two-dimensional torus network belongs to the distributing high performance fault tolerance computing technology field, characterized in that each physical passage between nodes are divided into two virtual passages which are both two-way passages and distributed to four virtual sub network of the two-dimensional torus network; the virtual passage distribution strategy avoids the deadlock formed among the sub networks and between the sub networks and has greater self-adapting.

二维torus网络无死锁的自适应路由方法属于分布式高性能容错计算技术领域，其特征在于，把节点之间的每条物理通道被划分为两条虚拟通道，这两条通道均为两向通道，并分配到二维torus网络的四个虚拟子网中，利用虚拟通道分配策略避免了各子网内以及各子网间可能形成的死锁，同时达到更高的自适应性。

SOC phenomena does not appears in classical one dimensional sandpile model, but for two or three dimensional model, it does. However, some people did some experiments with rice and find the SOC existing in one dimensional rice pile, it is not fit with the classical sandpile model. Nobody explained this phenomena.

在经典的一维沙堆模型中，沙堆崩塌时并没有出现自组织临界现象，只有在二维以上的沙堆模型中才出现自组织临界现象，然而，后来有人用米粒做实验，发现一维米粒堆中存在自组织临界现象，这与经典的一维沙堆模型相违背，但是却没能对这种现象作出一个较好的解释。

Second, for removing the influence, we develop the least squares method based on the stereographic projection implemented on a three-dimensional plane. It is described by the expressions:(4.35挆4.39). This method resolves some problem in Multi-sensor alignment on the same platform when the attitude errors are relatively small.

其次为了克服基于二维区域性平面中立体投影所产生的影响，本文推导了基于三维立体投影的最小二乘配准算法，其实现过程见式4.35～4.39，在传感器姿势误差较小的情况下，此算法解决了基于同一平台的多传感器配准中存在的问题。

The five methods are tested on a 2-D test function ,a straight airfoil and a sweepback airfoil. For the straight airfoil,the paper constructs its approximation models of structure disciplinary, aerodynamic disciplinary and stealth disciplinary.

用这五种方法分别构造二维测试函数的近似模型，直机翼结构学科、气动学科和隐身学科的近似模型和后掠机翼结构学科、气动学科的近似模型，并总结这五种方法对二维测试函数、直机翼和后掠机翼各学科近似的适用性。

The main tasks of this design are to acquire and identify image of QR Code in high speed, based on the research on international symbology spe...

本设计的主要任务是在研究二维条码的码制标准的基础上，实现对二维条码QR码的高速采集与识别。

Meanwhile, our architecture can also provide embedded symmetric extension function, and regular data flow, and is suitable for VLSI implementation. It can be applied to real time image/video operating of JPEG 2000 and MPEG- 4 applications.

此二维离散小波转换所用的记忆体容量在计算N×N的二维影像上只需要N的储存空间，这大约是JPEG2000标准中储存空间的一半，且工作频率可达到100MHz。

Based on above work, all kind of index have be caculated, and then distribute the index on the plane of develop zones. And then ground stress multiplied by unit reservoir factor reflected gas reservoir actual off-take potential was discovered by comparing the index with reservoir actual production of gas and water.

在上述工作的基础上，计算出各种反映气藏产能的各种指标，并将其在平面上二维展布；然后将这些指标的二维展布和该气藏实际生产动态相比较，发现地应力×单储系数能较好的反映气藏的产能。

We are satisfied that thefive main components were pure and plenty enough for NMR study. The structure and configuration of key component of urushiol weresuccessfully determined by using 〓 and 〓 conventioanl method,DEPTtechnique,homo- and heteronuclear chemical shift correlation 2D-NMR,2D-J resolved NMR,heteronuclear relayed coherence transfer 2D-NMR,and relaxation time measurement.The assignment of resonances for 〓and 〓 were confirmed.

对中国生漆含量最大的关键漆酚组分，在〓常规NMR谱和DEPT编辑谱的基础上，采用同核及异核化学位移相关二维谱，同核J分辨谱和异核中继相干传递二维谱等2D—NMR方法，并结合弛豫时间〓测定技术等，完全确定了占中国生漆总量60%左右的有两双键共轭的三烯漆酚的结构与构型。

Thirdly, Instead of using one-dimensional coupled map lattices model, we have constructed a combinable model, which is consisted of an one-dimensional chain, a two-dimensional netting grid and another one-dimensional chain as the drive-response system. So both the system's complexity for secret key streams and the efficiency for encryption have been increased.

第三，改进了使用单纯的一维耦合格子模型，而采用一维链加二维网格再加上一维链的组合模型来构造驱动和响应系统，增强密钥序列复杂度的同时也提高了系统的加密效率。

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。