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介绍了因单个高频大功率晶体管输出能力有限而采用多管并联运用(积木式)的方法。
Introduced the method of multi-transistor modular design, for the output ability are limited in single high-frequency power transistor.
一机多管作业，本机装有三套抽气头，可单独或并联使用。
One machine with multi-pipe operation, Where three sets of air exhaust or are fixed and used independently or parallelly.
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