1) A and B polarization switching
A、B极化切换
1.
This article makes an analysis for the plan A and B polarization switching in the state of circular polarization in ship satellite communication aerial,sums up the shortcomings of present switching plan that might change communication characteristics of sum-difference channel.
对船载卫通天线圆极化状态下A、B极化切换方案进行了分析,阐述了现行切换方案会改变和差通道传输特性,致使跟踪接收机校相值全部作废的缺点。
2) polarization A/B conversion
A/B极化转换
1.
The fundamental concepts about satellite polarization are introduced,the operation principles of antenna feed network and tracking receiver presented,and the mechanism of polarization A/B conversion described.
简要介绍了卫星通信极化的基本概念,对测量船天线馈源网络和跟踪接收机工作原理以及A/B极化转换的机理进行了描述,分析了天线跟踪系统相位变化的原因及关键问题,给出了海上动态A/B极化转换的方法,尤其是对海上动态校相的操作过程进行了较为详细的描述,最后举证了实际应用情况。
3) switchable polarization
极化切换
4) Pole-changing switchover
变极切换
1.
It is put forward that a new kind of pole-changing winding of Phase-group -interchange with A/A A connection and its way of Pole-changing switchover without interruption of POwer supply.
本文分析了典型的变极绕组及其变极切换方式。
6) switching between the cathode and the anode
阴阳极切换
补充资料：[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide]
分子式：C16H16ClN3O3S
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条