Ocean ambient noise is the interference to underwater sound channel, it has great effects on the design and use of all kinds of sonar systems.

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Ocean ambient noise is the interference to underwater sound channel, it has great effects on the design and use o...

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Note that in the "viral" marketing campaign for the film, there were hints concerning the "Bloop" incident. Several times during the summer of 1997, the U.S. National Oceanic and Atmospheric Administration recorded an ultra-low frequency underwater sound using U.S. Navy "spy" sensors 3,000 miles apart.

應(yīng)該注意到在該電影的"病毒性"市場營銷里最新黄色网站又大又粗，有一些關(guān)于"雜音"事件的暗示小草永久免费看视频。1997年夏天，美國國家海洋大氣局使用美國海軍"間諜"探測器記錄下了一段3000英里外水下的超低頻聲音一级性爱视频免费看。

The results are very useful in analyzing the sound field distribution of combination source in the underwater sound channel.

該成果對于分析水聲信道中組合聲源的聲場分布具有一定的參考價值和指導(dǎo)意義综合偷拍第50页。

The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology.

火花發(fā)生器原來是為了進行關(guān)于水下聲波傳播及海底地質(zhì)的基礎(chǔ)性研究而制造的。

By recording the underwater sound of red drum (Sciaenops ocellatus, Sciaenidae) and measuring some physical environmental factors, the relationship between the environmental factors and sound periodicity was studied.

石首魚發(fā)聲具周期性在线观看91香蕉国产免费，因此以全年水下錄音的方法來比較不同環(huán)境因子對紅鼓魚發(fā)聲周期性的影響国产精品有公司，結(jié)果顯示日出與日落都會誘發(fā)魚只增加叫聲。

Research and application development of the underwater sound absorbing materials and structures at home and abroad are summarized.

概述了水下吸聲機理www.99riav45，綜述了常用的吸聲材料和吸聲結(jié)構(gòu)以及國內(nèi)外水下吸聲材料的研究和應(yīng)用現(xiàn)狀性爱黄色视频欧美。

In this paper, emphasis was paid to studying effects on the underwater sound attenuation of gradient polymer solutions.

文中詳細研究了梯度高分子溶液在不同頻率下，聚合物厚度及梯度結(jié)構(gòu)的變化對反射聲衰減效果的影響玖玖在线视频精品。

To prove the system can be used in underwater acousto-optic communications, with this system, the acoustic frequency and intensity of underwater sound source are detected.

為了證明系統(tǒng)能夠應(yīng)用于水下聲光通信国产暴爽AV，進行了對水下聲源發(fā)出的聲波頻率和強度的探測實驗。

From the point of the view of the communication theory, the ocean, as the media of sound transmission, is called to be underwater sound channel.

海洋作為水下聲波傳播的介質(zhì)欧美黄片性爱视频，從通信論的觀點來看黄色一级大片在线免费观看，海洋就是聲信道。