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- While hunting on the3) seabed they emitted a4) weird5) medium frequency noise. 在海底獵食時(shí)，們發(fā)出一種奇怪的中頻率雜音。
- While hunting on the 3)seabed they emitted a 4)weird 5)medium frequency noise. 在海底獵食時(shí)，??欠3.;鲆恢制婀值鬧釁德試右簟
- While hunting on the seabed they emitted a weird medium frequency noise. 在海底獵食時(shí)，它們發(fā)出一種奇怪的中頻率雜音。
- The generalized harmonic wavelet can analyze signals in random frequency band, and ensure the frequency resolution unchangingly by a generalized harmonic wavelet transformation. 摘要將二進(jìn)諧波小波推廣到廣義諧波小波后，能夠對信號的任意頻段進(jìn)行分析，且能夠保證信號經(jīng)過(guò)廣義諧波小波變換后其頻率分辨率保持不變。
- The criterions of high frequency noise,background noise and reduce coefficient were presented. 導出了原子光譜高頻噪聲判據，背景噪聲、壓縮系數關(guān)系判據；
- Use of high loss ferrite material for excellent high frequency noise absorption. 使用優(yōu)質(zhì)高衰減鐵氧體磁芯提高高頻噪音隔離.
- In sound recording,a low frequency noise usually produced by regular variations in the speed of a system's mechanical component. 錄音技術(shù)中的一種低頻噪聲，通常由于系統機械部件的速度有規律變化而引起。
- By using this method, the impact on depressing the partial vibration and the radiation of the low frequency noise of the structure underwater is efficacious. 采用增大局部結構剛度的方法，對于降低水下結構的局部振動(dòng)與低頻噪聲輻射效果顯著(zhù)。
- In sound recording, a low frequency noise usually produced by regular variations in the speed of a system's mechanical component. 錄音技術(shù)中的一種低頻噪聲，通常由于系統機械部件的速度有規律變化而引起。
- Helmholtz resonator has a good noise eliminating performance at low frequency.So it has been widely used on low frequency noise reduction. 摘要亥姆赫茲共振腔具有良好的低頻消聲性能，被廣泛地應用于低頻消聲方面。
- The large C1 cap rolls off the gain of the regulator starting at a low frequency so that high frequency noise isn't amplified by the error amp. 這個(gè)大的電容C1從一個(gè)較低的轉折頻率開(kāi)始滾降，所以高頻噪音沒(méi)有被誤差放大器放大。
- random frequency modulation(RFM) 隨機頻率調制
- random frequency shift keying/frequency hopping 隨機頻移鍵控跳頻
- Soiled dishes were piled at random. 臟碟子胡亂地堆放著(zhù)。
- Then the supersonic ejector is used,the high frequency noise will take place when the pressure in store tanks decreases to a specific value,and the environment of . 但使用超音速引射器后,當球罐壓力下降到某一值時(shí)會(huì )產(chǎn)生高頻噪聲,影響管束區操作環(huán)境。
- The results show that WT is an effective method by which high frequency noise and baseline drift in NEMG can successfully be eliminated by selecting proper transform scales of WT. 結果表明，在應用小波變換處理NEMG信號過(guò)程中，只要適當選取變換尺度就可以在處理信號的同時(shí)，有效地消除原信號中高頻噪聲和基線(xiàn)漂移的影響。
- The improvement on the edf for the higher frequency noise is better than that for the lower frequency noise in the overlapping estimators and the total estimators. 而相應的重疊估計和總方法估計與之相反，噪聲的頻率越高，其等效自由度越大，這也說(shuō)明重疊估計和相應的總方法估計對高頻噪聲等效自由度的提高優(yōu)于低頻噪聲。
- The most advanced of these is the Active Noise Cancellation system (ANC), which cancels out low frequency noise by playing the opposite wave form through the Bose sound system. 其中最先進(jìn)的是主動(dòng)噪音消除系統（非國大），其中取消打通過(guò)Bose音響系統相反的波形進(jìn)行低頻噪音。
- The paper applies the technology of wavelet transforming to weaken the noise effect in motor control system and decomposes the high frequency noise component by transforming. 本文應用小波變換可以降低電機控制系統中噪聲影響的技術(shù),通過(guò)變換分解出高頻噪聲部分,利用小波收縮的閾值量化方法去掉高頻部分,再重構信號從而達到去噪目的。
- The random frequency of the enzyme's recognition sequence(s) (內切)酶的識別序列的隨機頻率
