Active band-pass filter is a important section of pulse width modulated rebalance loop.
有源带通滤波器是脉冲调宽再平衡回路的一个重要部分。
The key technique of this new filter is how to achieve the extreme narrow band-pass width and a slight deviation of central frequency.
如何实现极窄的通带宽度和极小的中心频率偏差是研制中所解决的关键技术问题。
The relation between the residual stress and heated band width in multi pass welding behaves in the latter type.
多层焊形式下的残余应力与加热宽度的关系表现为后一种型式。
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