hf
[军] High Frequency,高频 symb 铪 Hf(hafnium)
难易程度:
hf为短语/超纲词汇
hf
/,eɪtʃ 'ef; ,etʃ `ɛf/
abbr 缩写 = (radio 无) high frequency. Cf 参看 LF.
abbr 缩写 = (radio 无) high frequency. Cf 参看 LF.
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