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2 definitions found
From:
DICT.TW English-Chinese Dictionary 英漢字典
hf
high
frequency
（高頻）的簡寫
From:
WordNet (r) 2.0
Hf
n
1:
a
gray
tetravalent
metallic
element
that
resembles
zirconium
chemically
and
is
found
in
zirconium
minerals
;
used
in
filaments
for
its
ready
emission
of
electrons
[
syn
:
hafnium
,
atomic number 72
]
2: 3
to
30
megahertz
[
syn
:
high frequency
]
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