双站SAR是分布式合成孔径雷达系统的典型代表，是分布式合成孔径雷达系统的基本模型，更是研究分布式合成孔径雷达系统的突破口。
Bistatic SAR is the typical distributed SAR system, as well as the basic model of which, so it is the "Sally port" to start the research and development of distributed SAR system.
本文对一从瑞士引进的应用于合成纤维成条机的交流串级调速双闭环系统进行了理论分析与现场调试。
The theoretical analysis and field adjustment of a AC cascade speed regulating system with double closed-loop employed in a synthetic fibre bar making unit imported from Switzerland are conducted.
介绍了双闭环比值控制系统的设计思路以及在氯乙烯合成装置中乙炔和氯化氢比值控制系统的设计和应用，以及在设计比值控制系统时所应注意的有关事项。
This paper introduces the design concept of double closed-loop ratio control system as well as the design and the application about acetylene with hydrochloride in chloroethylene synthesis unit.
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