This machine has terse structure, convenient operation, steady working system and wide adjustable range.
本机结构简洁，操作简便，运行平稳，调整范围大。
It is of high accuracy, high speed and flexible adjustable range.
具有精确度高、速度快、可调范围大的优点。
This circuit has the characteristics of low power, wide gain adjustable range and wide bandwidth.
该电路具有低功耗、增益可调范围宽和频率范围宽的特点，适用于一般的中频接收机。
This circuit has the characteristics of low power, wide gain adjustable range and wide bandwidth.
该电路具有低功耗、增益可调范围宽和频率范围宽的特点，适用于一般的中频接收机。
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