回线

In a tackle situation there is great advantage in forcing the opponent, whether ball-carrier or tackler, back from the line of engagement.

在处理情况有很大优势，迫使对手，无论球tackler或者承运人、回线接触。

In order to analyze and correct this effect, the method to calculate turn-off time is given. According to theoretical TEM response of multiturn loop source, TEM response affected by linear and half-sine turn-off current was calculated, and Taylor's series expansion was used by calculating TEM response of half-sine turn-off current. The two mode's responses, linear mode's response and half-sine mode's response, were analyzed in turn-off time 2μs-100μs.

为了分析和校正这种影响，文中给出了关断时间的计算方法，根据多匝回线源产生的瞬变场理论解析式，计算了线性和半正弦关断电流影响下瞬变场表达式，计算半正弦关断电流产生的瞬变场时将正弦函数进行泰勒展开；分析了关断时间在2 μs~100 μs之间两种关断模式产生的瞬变响应。

The thermomagnetic Mn-Zn-ferrite, which has low Curie temperature was prepared.

制备了低居里温度的磁热Mn Zn铁氧体，对样品进行了磁滞回线和磁热效应的试验及测定，结果表明，试样在交变磁场下，具有明显的磁热效应。

Positive, negative and zero sequence components form transfer matrix and the fault calculation of EHV double circuit can be realized. Distributed transmission line model was adopted in the algorithm and the algorithm has higher accuracy.

利用正序、负序和零序分量构成转移矩阵，实现同杆双回线任意故障的计算，算法采用分布参数的线路数学模型，具有较高精度。

A highly reliable test system is designed. Based on the magnetismed property of steel .Using Autolisp languagaahe computer interface software is worket out.Then.the magnetized curve and hysteresis loop are mapped.Employed neural network-the nonlinear mapping between carbon content and magnetism parameter are built up. The intelligency test is realised.

提出了一种新的钢材含碳量无损检测方法，设计了可靠性较高的检测系统，以钢材的磁特性为基础，用Autolisp语言编制计算机接口软件，测绘出钢材的磁化曲线和磁滞回线，应用神经网络理论，建立含碳量和磁性特征量间的非线性映射，实现含碳量的智能化检测。

The maloperation of transverse differential current protection will be caused by the circulating current when each fault occurs in parallel lines.

该文利用六序故障分量法对平行双回线的零序循环电流进行了分析，用零序电流对电流平衡保护的起动判据作了改进。

The transient electromagnetic installation conmmonly sued in detection of water-accumulating gob in coal mines is configuration of central loop—fixed loop sources,systematic theoric analysis and numerical modeling were made in the paper in term of rim effect.

瞬变电磁法探测煤矿积水采空区常用的装置为大定源-中心回线组合方式，由此产生的边框效应问题本文进行了系统的理论分析和数值模拟。

Based on this new system, an electromagnetic model is established, which proves that the communication channel between antenna and rail cable is invariable.

针对传统感应无线通信系统和测速定位系统存在的不足，设计了一种新型交叉感应回线系统。

Fault location ; protection ; relay double circuit line

故障定位；继电保护；继电器/双回线

According to the characteristics of field dis tribution, a method to abstract quadrature component and amplitude of vertical magnetic field in near-field zone is proposed. Based on the dual-fre. quency combi nation wave theory, apparent resistivities with various forms at center and any point in near-field zone of current loop on stratified earth are defined.

根据场分布的特征，提出了在近区提取磁场垂直分量的正交部分和磁场垂直分量的振幅作为研究对象的方案；根据双频组合波理论，利用它们所对应的双频差，给出了载流回线中心点和近区任意点的视电阻率不同形式的表达式。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。