混频器主结构采用两只对称的单平衡混频器组合，通过上下两路信号移相来达到消除镜频的目的。
The main structure of the mixer adopts two symmetrical single-balanced mixers, with phase-shifting of the up and down path signals to eliminate the image frequency.
由于减速器采用蜗杆单级减速器，所以结构紧凑，重量轻，传动平衡，噪音低，传递效率大，搅拌能力强。
It is of compact structure, light weight, transmission balance, low noise, high efficiency and strong capability, because the reducer adopts turbine worm single reduction gear.
简要介绍内河新型单船标的材料性能、结构设计、平衡机理、受力分析。
The material characteristics, structural design, balance mechanism and stress analysis of inland river new-type buoy are briefly introduced.
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