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21
¹«¼±ÀåÄ¡(ÙíàÊíûöÇ)
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radio equipment
22
¹«¼±ÁÖÆļö(ÙíàÊñ²÷îâ¦)
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radio frequency (RF)
23
¹«¼±ÁÖÆļö ÀüÀÚ±âÀå (ÙíàÊñ²÷î⦠ï³í¸Ñ¨íÞ)
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radio frequency electromagnetic fields
24
°íÁÖÆÄ °¡¿±â±¸(ÍÔñ²÷î Ê¥æðÐïÎý)
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radio frequency heating apparatus
25
¹«¼±ÀüÈ(ÙíàÊï³ü¥)
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radio telephony
26
¹«¼± ¼Û½Å±â(ÙíàÊ áêãáѦ)
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radio transmitter
27
ÀüÆÄ(ï³÷î)
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radio wave
28
ÀüÆÄÀüÆÄ(ï³÷îîî÷ë)
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radio wave propagation
29
¹«¼±Åë½Å(ÙíàÊ÷×ãá)
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radiocomunication
30
ºÒ±ÔÄ¢ ¸ÅÁú(ÜôЮöÎ ØÚòõ)
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random medium
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