电力线

That the Motorola company produces apply the main body of a book , the reality having given the carried communication making use of one kind of high sensitivity electric line of force that these components design out a wave filter applies a circuit.

本文采用Motorola公司生产的调频通信器件混频器、解调器、振荡器等的特性、结构、原理及典型应用，给出了利用这些器件设计的一种高灵敏度电力线载波通信滤波器的实际应用电路。

Because of the characteristics of power line channel, it is need to use the equalizer in that system.

但是因为电力线信道的特点，在系统中加入均衡器也是必须的。

This paper discusses the principle and implemention of equalizer in low-power line communication system based on in the OFDM.

本论文就是论述在基于OFDM的低压电力线通信系统中均衡器的原理和实现的。

At each crossing of an equipotential and a field line, the two are perpendicular

在等位面与电力线的每个交点，两者是垂直的。

Looks from the system communication effect, this system has a higher antijamming, the anti-signal weakens ability, the system can achieve a farther transmitting range, simultaneously because the communications system essential part SC1128 (Spread Spectrum / solution expand chip) is specially designed according to the domestic low power line characteristic, the performance price is high, these are all advantageous to the system's promotion.

从系统的通信效果来看，本系统有较高的抗干扰，抗信号衰减的能力，系统可达到较远的传输距离，同时由于通信系统的关键部件SC1128是根据国内低压电力线特性而专门设计的，性价比高，这些都有利于系统在做进一步的完善后在国内自动抄表行业内的推广。

In an uniform field, the lines of force are straight parallel, and uniformly spaced.

在匀强电场中，电力线是平行的直线，其间隔是均匀的。

This company offers a full line of power tools to outfit any workshop.

这家公司提供了充分的电力线装备任何工具车间。

The content mainly introduce the application of the power line carrier in the field of the intercom.

本文主要介绍电力线载波通讯技术在对讲机领域的应用。

Also, one researcher claims that electric fields from power lines ionize particles in the air, and these particles are carcinogenic.

此外，一名研究人员声称，从电场电力线电离粒子在空气中，这些粒子是致癌物质。

D to set up the pressure on the bridge at 4 kg / cm2 (o.4 MPa) over the gas pipelines, more than 10 kilovolt high-voltage power lines and other inflammable and explosive pipe

在桥梁上架设压力在4公斤／平方厘米(o.4兆帕)以上的煤气管道、10千伏以上的高压电力线和其他易燃易爆管线的

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。