reverberation field 中文意思是什麼
reverberation field
解釋
混響聲場- reverberation : n. 1. 反響，回蕩；余韻；反射；反射熱，反射光。2. （反射爐的）返焰；返焰爐處理法。3. 【物理學】交混回響，混響，余響。
- field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
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This paper studies the mechanism generated from flow - noise in seawater pipeline, introduces controlling method of flow - noise, analyzes sound field characteristics of flow - noise in seawater pipeline system and the merits and demerits of measuring the flow - noise methods in and out of the pipeline. in our experiment, a test measuring device of seawater muffler is used in a measuring chamberlet to verify that a method of reverberation chamberlet is difficult to exactly measure the low frequency flow - noise in pipeline. at the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method
本文分析了海水管路系統內流噪聲的產生機理，介紹了流噪聲的控制方法；分析了海水管路系統中流噪聲的聲場特性以及流噪聲管內、管外測量方法的優缺點；通過海水消聲器試驗測量臺架，利用測量小室驗證了混響箱法難以準確測量海水管路系統中的低頻流噪聲；用測量小室對水消聲器在低頻段的插入損失進行了測量。 -
But as before the lightning the serried stormclouds, heavy with preponderant excess of moisture, in swollen masses turgidly distended, compass earth and sky in one vast slumber, impending above parched field and drowsy oxen and blighted growth of shrub and verdure till in an instant a flash rives their centres and with the reverberation of the thunder the cloudburst pours its torrent, so and not otherwise was the transformation, violent and instantaneous, upon the utterance of the word
293然而閃電之前，密集的雨雲因含濕氣過多變得沉甸甸的，膨脹起來。大團大團地蔓延，圍住天與地，使其處于深沉的酣睡狀態並低垂在乾涸的原野睏倦的牛和枯萎的灌木叢與新綠的嫩葉上。接著，剎那間閃光將它們一劈兩半，隨著雷聲轟鳴，大雨傾盆而下。
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