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IF amplifier
中频放大器
电子
IF amplifier
if and only if
if and when
if any
if anybody
if anything
if anything should oc...
if anywhere
if applicable
if at all
IF bandpass filter
if block
IF branching station
IF canceler
if canceller
if clause
IF combining
if desired
if ever
IF expression
IF feed-through
IF filter
if fortune favours
IF heterodyne repeater
if I am not mistaken...
if I may say so...
if I mistake not...
if I take you correctly
if I were in your pla...
if I were you
if I were you...
IF interconnection
IF interference
if it comes to that
if it comes to that...
if it comes to the pinch
if it comes to the push
if it had not been for
if it hadn't been for...
if it is possible
if it weren't for...
if level
if logical control st...
IF modulation
IF modulator
if my memory serves me
if necessary
if need be
if not
if one is spared
if only
IF oscillator
IF output
IF passband
if peradventure
if possible
IF power amplifier
IF preamp
if present
IF rejection ratio
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