acoustic axis 中文意思是什麼
acoustic axis
解釋
聲軸-
A two - cylinder model for saal incorporating bem simulations is proposed, which introduces a factor concerning the geometric parameters of the levitator into the expressions for the time - averaged potential u, acoustic radiation force f, and restoring force constant ki, respectively, and builds up the relationship between the levitation capabilities and the geometric parameters of a single - axis acoustic levitator
建立了單軸式聲懸浮的優化設計理論模型，採用邊界元方法求解入射聲場，在表徵聲懸浮性能的時間平均勢u 、聲輻射力f _ i和回復力常數_ i的表達式中分別引入了一個涉及懸浮器幾何參數的因子。 -
Research on de - cross - correlation methods based on time axis perturbation in multi - channel acoustic echo cancellation
多路聲回波對消中基於時基微擾的去互相關法的研究 -
The advantage of al is its applicability to non - conducting substances and also to low - melting - point metallic materials. due to the fact that the levitation capability of single - axis acoustic levitation ( saal ) is comparatively weak and its applications are mainly limited to low - density substances, this paper aims at enhancing the levitation capability of saal and realizing the containerless solidification of those materials with low melting temperature and high density
本文針對當前單軸式聲懸浮能力較弱，而且主要應用於低密度材料無容器處理的研究現狀，以提高聲懸浮能力、實現低熔點高密度材料的聲懸浮無容器凝固為主線，採用理論和實驗相結合的方法，對單軸式聲懸浮過程及其主要影響因素進行了較為系統、深入的研究，主要取得以下幾方面的研究結果。 -
When the vertical formation lies outside of the borehole, the effect of the borehole on the acoustic field decreases with the increase of the distance between the formation and the axis of the borehole ; when the source locates on the interface, with the increase of the azimuth of the dipping interface, the transmitted energy of the horizontal component gradually increases, but that of the vertical component decreases
當井外存在徑向分層時，隨著地層界面遠離井軸，對井內聲場的影響減小。 2 、當聲源位於地層界面以上時，隨著地層傾角的增大，水平分量透過地層界面的聲能量是逐漸增大的；垂直分量的透射聲能量卻是減小的。 -
Single - axis acoustic levitation of the heaviest solid ( iridium, p = 22. 6g / cm3 ) and liquid ( mercury, p = 13. 6g / cm3 ) on the earth is achieved by greatly enhancing both the levitation force and stability through optimizing the geometric parameters of the self - developed single - axis acoustic levitator. this indicates that all the solids and liquids can be acoustically levitated on the earth in principle
對自行研製的單軸式聲懸浮器進行了優化設計，極大地提高了懸浮力和懸浮穩定性，首次懸浮起自然界中密度最大的固體銥（ i - r ，密度22 . 6g cm ~ 3 ）和液體汞（ hg ，密度13 . 6g cm ~ 3 ） 。
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