电力线

These may be the presence of water, antennas, power lines, cable cars, microwave towers, known turbulent areas, regions with few or hilly landing areas, regions with venturis.

这些可能是的存在水、天线、电力线、电缆车、微波塔、已知的乱流地区、仅有少数或丘陵降落地区的区域，高风﹙ venturis ﹚区域。

Based on these problems, this paper makes street lamps intensive manage system for example and desigrs a communication system based on direct sequence spread spectrum modulation and demodulation technology on power line, and aims at the problems which emerged during tests brings forward resolvents.

基于上述问题，本文以城市路灯远程集中管理系统为例，开发了能够实现在低压电力线上传输数据的扩频数字传输系统，并针对在实验中暴露出的问题给予简单分析、提出了解决方案。

Electrical power-line installers and repairers - Median salary:$52,570 Education: vocational training and several years of on-the-job training

电力线安装及维修工-工资中位数：$52，570。教育水平要求：职业教育和数年现场培训。

In DAS, we can select many types of communication method such as optic fiber, radio, wire and cable, power line carrier etc.

配电自动化可以选择多种通信方式：光纤、无线、电缆、电力线载波，等等。

In recent years, with the introduction of digital signal processing technology, thetheory and application for the low tension Power Line Carrier technology arebecoming more and more popular.

近年来，随着先进的数字信号处理技术引入，低压电力线载波通信技术的理论和应用研究成为新的研究热点。

All this just by properly tuning the power steering line.

这仅适当调整电力线督导。

So, the power steering line should have no tension or slack while the kite flies straight overhead.

因此，电力线应无张力或督导不力而风筝直飞开销。

In this case, the subchannels used by the power line communication system having the high priority are limited to a plurality of consecutive subchannels from an upper side or a lower side of the frequency band.

在这种情况下，优先级高的电力线通信系统所使用的子信道限于从该频带的高侧或者低侧开始的多个连续的子信道。

In oder to be in keeping with the real condition of torsional micromirror, the improved formulas for electrostatic force in finite scale parallel plate capacitor are introduced and the edge effects are taken into account.

而实际应用中的扭转微镜是有限尺度的，即在边缘处电力线会发生泄漏和弯曲，从而产生边缘效应。

The main business comprises two parts. 1: the production of fiber-optic transmission equipment, PCM integrated access devices, communications portfolio with high-frequency switch power supply; Second: Sales Scheduling switches, power line carrier communication equipment and outdoor equipment (resistance line filter, coupling capacitors, combined with filter) and so on.

一：生产光纤传输设备、PCM综合接入设备、通信用高频开关组合电源；二：销售调度交换机、电力线载波通信设备和户外设备（线路阻波器、耦合电容器、结合滤波器）等。

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。