直交的

The AC-DC-AC voltage source inverter main circuit and TMS320LF2407 are selected to form high performance alternating current excitation system of ASG in this dissertation after detail schemes argumentation.

本论文在详细方案论证的基础上选择了交－直－交电压型主电路和数字信号处理器TMS320LF2407构成高性能的异步化同步发电机交流励磁系统。

A common line connecting various types of single-and double-switch turnout; cross-cross and a diamond-shaped cross-straight; cross-connect with the combination of a switch and cross-reference points, such as crossing lines.

常用的线路连接有各种类型的单式道岔和复式道岔；交叉有直交叉和菱形交叉；连接与交叉的组合有交分道岔和交叉渡线等。

AC-DC-AC dirve technique. due to the obvious advantages of its application in locomotives andmotor coach,has been widely used in the railways all over the world since 1970s. This has become a tendency.

交－直－交传动技术应用于机车动车具有明显的优点，70年代以来被世界各国铁路广泛采用，已形成一种趋势。

Through doing Path Analysis, the directly path coefficient between any trait of seven and outcrossing seed-setting rate in Hybrid Rice Seed Production arrange from high to low is: rate of grain in neck, single stigma exsertion, opening angle of spikelet, dual stigma exsertion, flowering duration, flowering-time, spikelet opening time.

通径分析表明各个开花性状与异交结实率的直接通径系数由大到小为：包颈粒率，柱头单边外露率，张颖角度，柱头双边外露率，开花历期，开花时间，开花历时。

The first kind is 0-equation model. It only includes mass and momentum conservation equations. Great progresses have been made in improving this model. It has successfully been applied to many natural rivers with complicated boundary geometry. The second kind is κ-ε model. The κ equation and ε equation are needed, besides mass and momentum conservation equations. Many researchers have studied the depth-averaged mathematical models of turbulence in recent years. However, the models were used mostly in regular artificial canals or natural water areas with simple boundaries.

对于宽浅型河流，采用深度平均法进行流场计算时，用得较多的有两类模型：一类是不增加任何脉动量的偏微分方程的模型，这类模型已在适体坐标下运用得较多且较成功；另一类是κ-ε二方程模型，它是近几十年来广泛应用的一类湍流模型，并发展了许多具体的形式，但大多数只对顺直河道进行了研究，对弯曲较大的河道研究不多，本文运用适体坐标，采用正交交错网格及非正交交错网格，把此模型运用到了弯曲较大的河段及具有汇流的河段，取得了较大的成功。

For example, one can use QR decomposition to find the orthogonal matrix B, or use the orthogonal projection matrix of A as B.

例如，人们经常使用的QR分解方法找到正交矩阵B，更直接地，B可以取为矩阵A的正交投影矩阵。

The proposed algorithm is based on the Gram-Schmitz orthonormalization of equivalent spread-spectrum codes and the successive interference cancellation.

本文针对多径衰落信道下的直扩码分多址系统的上行链路，基于等效扩频码组Gram-Schmitz正交化与串行干扰消除，提出了等效同步多用户检测算法。

The q-axis and d-axis reactance, in which is parallel structure with several branches, is studied by analytical method.

利用解析法对永磁体和铁磁体多支路并联磁路的交、直轴电抗进行了推导，给出了满足工程设计精度的计算方法。

The geometry model formular is used to deduce the length of yarns, the oridentation angle of the nodulated yarns and the fiber volume content on some typical 2.5-D woven composites, such as shallow curve-linking structures, shallow straight-linking ones, and depp angle-linking ones, and tensile strength and compress strength of the composites are forecated.

借助模型推导出纱线在几种典型结构（浅交弯联、浅交直联、深角联）的单元体结构内的纱线长度、接结经的取向角和纤维体积分数，并对材料进行拉伸、压缩性能预测。

The article divided the stress influencing factors of involutes spur gear tooth root into 5 levels of 5 factors, with orthogonal table L25(4^5) setting up a group of 24 combinations of factors.

文中将渐开线直齿圆柱齿轮齿根应力的影响因素分为5因素5水平，用正交试验表L25(4^5)组建了24组因素组合。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。