WIP窗口是一个极其动态的环境；版本的有关信息在WIP中频繁变化，用以反映何时调度转换步骤以及执行进度如何。

The WIP window is a very dynamic environment; information about editions very frequently changes in the WIP, to reflect when the transformation steps are scheduled, and how the execution progresses.

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传统双上变频发射器通常采用中频(IF)混合器和射频(RF)混合器将基带用户信号依次转换成IF和RF。

Conventional dual up-conversion transmitter usually employs an intermediate frequency (IF) mixer and a radio frequency (RF) mixer to convert baseband user signal to IF and RF in sequence.

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这种直接转换接收器能够免除进行中频(IF)滤波的需要。

This direct conversion receiver can eliminate the need for intermediate frequency (IF) signal processing, as well as the corresponding requirements for image filtering and IF filtering.

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