HFDF的相關資料：
臨近單詞
HFR
HF
HF burst-mode communication
HFCS high fructose corn syrup
HF induction heating apparatus
HF instantaneous communication
HFRS bivalent purified vaccine
HFBT High Frequency Boolean Test
HF no-blind zone communication
HF frequency-spectrum analyser
HF plastic hot-bonding machine
HFC Network For Broadband Access
