简正频率 [物] Normal frequency
正频率 [物] positive frequency
校正频率 calibration frequency ; frequency of calibration
正交频分多址 OFDMA ; Orthogonal frequency-division multiple access ; OFDM access ; Orthogonal Frequency Division Multiple
修正频率 frequency of amendment
正交频分复用 OFDM ; Orthogonal Frequency Division Multiplexing ; MIMO-OFDM ; VSF-Spread OFDM
正交频分复用技术 OFDM ; Orthogonal Frequency Division Multiplexing ; Orthogonal Frequency Division Multiplexing System ; MIMO-OFDM
简正频次 Normal frequency
正交频分多路复用 OFDM
不幸的是，这种稀有物种现在正频临灭绝的危险。
Unfortunately, such a rare species is now faced with the danger of being extinct.
不幸的是，这种稀有物种此刻正频临灭绝的危险。
Unfortunately, such a rare species is now faced with the danger of being extinct.
我们必须清楚地认识到许多动物正频临灭绝的危险。
We should be aware that a lot of animals are becoming endangered.
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