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to phrases
underfrequency
[ˌʌndə'friːkwənsi, -dər'-]
n
gen.
降低
了
的频率
;
低于额定的频率
avia.
欠频
oil
低于额定频率
space
频率过低
;
降低的频率
underfrequency
[ˌʌndə'friːkwənsi, -dər'-]
adj.
gen.
低频
率
的
underfrequency
:
10 phrases
in 4 subjects
Aviation
1
Electronics
5
Hydroelectric power stations
3
Technology
1
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